Organization record
MAHANAGAR TELEPHONE NIGAM LTD
All evidence-backed facts for this organization, identity resolved across official registers.
Facts on record
Newest first; every row links to its evidence page.
| Fact | Value | Period | Source |
|---|---|---|---|
| accounts_payable | {"amount": 80000000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| accounts_payable | {"unit": "INR", "value": 4090000000, "concept": "us-gaap:AccountsPayableCurrent"} | 2011-03-31 | sec_edgar |
| accounts_receivable | {"amount": 21000000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| accounts_receivable | {"unit": "INR", "value": 1179000000, "concept": "us-gaap:AccountsReceivableNetCurrent"} | 2011-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 18000000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 25000000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-03-31 | sec_edgar |
| cash_and_equivalents | {"unit": "INR", "value": 1056000000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingV | 2010-03-31 | sec_edgar |
| cash_and_equivalents | {"unit": "INR", "value": 1419000000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingV | 2009-03-31 | sec_edgar |
| cashflow_financing | {"amount": 431000000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2012-03-31 | sec_edgar |
| cashflow_financing | {"unit": "INR", "value": 74557000000, "concept": "us-gaap:NetCashProvidedByUsedInFinancing | 2011-03-31 | sec_edgar |
| cashflow_investing | {"amount": -153000000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2012-03-31 | sec_edgar |
| cashflow_investing | {"unit": "INR", "value": 37924000000, "concept": "us-gaap:NetCashProvidedByUsedInInvesting | 2011-03-31 | sec_edgar |
| cashflow_investing | {"unit": "INR", "value": -13521000000, "concept": "us-gaap:NetCashProvidedByUsedInInvestin | 2010-03-31 | sec_edgar |
| cashflow_operating | {"amount": -285000000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "c | 2012-03-31 | sec_edgar |
| cashflow_operating | {"unit": "INR", "value": -112260000000, "concept": "us-gaap:NetCashProvidedByUsedInOperati | 2011-03-31 | sec_edgar |
| cashflow_operating | {"unit": "INR", "value": 13158000000, "concept": "us-gaap:NetCashProvidedByUsedInOperating | 2010-03-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 630000000, "concept": "us-gaap:CommonStockSharesIssued"} | 2012-03-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 630000000, "concept": "us-gaap:CommonStockSharesIssued"} | 2011-03-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 630000000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2012-03-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 630000000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2011-03-31 | sec_edgar |
| current_assets | {"amount": 295000000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| current_assets | {"unit": "INR", "value": 17063000000, "concept": "us-gaap:AssetsCurrent"} | 2011-03-31 | sec_edgar |
| current_liabilities | {"amount": 1252000000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| current_liabilities | {"unit": "INR", "value": 53963000000, "concept": "us-gaap:LiabilitiesCurrent"} | 2011-03-31 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 630000000} | 2012-03-31 | sec_edgar |
| income_tax_expense | {"amount": 0, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2012-03-31 | sec_edgar |
| income_tax_expense | {"unit": "INR", "value": -9276000000, "concept": "us-gaap:IncomeTaxExpenseBenefit"} | 2011-03-31 | sec_edgar |
| income_tax_expense | {"unit": "INR", "value": -11806000000, "concept": "us-gaap:IncomeTaxExpenseBenefit"} | 2010-03-31 | sec_edgar |
| industry_sic | {"code": "4813", "scheme": "SIC", "description": "Telephone Communications (No Radioteleph | sec_edgar | |
| intangible_assets | {"amount": 1738000000, "concept": "us-gaap:FiniteLivedIntangibleAssetsNet", "currency": "U | 2012-03-31 | sec_edgar |
| intangible_assets | {"unit": "INR", "value": 94749000000, "concept": "us-gaap:FiniteLivedIntangibleAssetsNet"} | 2011-03-31 | sec_edgar |
| inventory | {"amount": 18000000, "concept": "us-gaap:InventoryNet", "currency": "USD"} | 2012-03-31 | sec_edgar |
| inventory | {"unit": "INR", "value": 1177000000, "concept": "us-gaap:InventoryNet"} | 2011-03-31 | sec_edgar |
| net_income | {"amount": -819000000, "concept": "us-gaap:NetIncomeLoss", "currency": "USD"} | 2012-03-31 | sec_edgar |
| net_income | {"unit": "INR", "value": -32895000000, "concept": "us-gaap:NetIncomeLoss"} | 2011-03-31 | sec_edgar |
| net_income | {"unit": "INR", "value": -25553000000, "concept": "us-gaap:NetIncomeLoss"} | 2010-03-31 | sec_edgar |
| operating_income | {"amount": -667000000, "concept": "us-gaap:OperatingIncomeLoss", "currency": "USD"} | 2012-03-31 | sec_edgar |
| operating_income | {"unit": "INR", "value": -28570000000, "concept": "us-gaap:OperatingIncomeLoss"} | 2011-03-31 | sec_edgar |
| operating_income | {"unit": "INR", "value": -44471000000, "concept": "us-gaap:OperatingIncomeLoss"} | 2010-03-31 | sec_edgar |
| ppe_net | {"amount": 1592000000, "concept": "us-gaap:PropertyPlantAndEquipmentNet", "currency": "USD | 2012-03-31 | sec_edgar |
| ppe_net | {"unit": "INR", "value": 83213000000, "concept": "us-gaap:PropertyPlantAndEquipmentNet"} | 2011-03-31 | sec_edgar |
| pretax_income | {"amount": -819000000, "concept": "us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeT | 2012-03-31 | sec_edgar |
| pretax_income | {"unit": "INR", "value": -23634000000, "concept": "us-gaap:IncomeLossFromContinuingOperati | 2011-03-31 | sec_edgar |
| pretax_income | {"unit": "INR", "value": -37365000000, "concept": "us-gaap:IncomeLossFromContinuingOperati | 2010-03-31 | sec_edgar |
| retained_earnings | {"amount": -534000000, "concept": "us-gaap:RetainedEarningsAccumulatedDeficit", "currency" | 2012-03-31 | sec_edgar |
| retained_earnings | {"unit": "INR", "value": 14515000000, "concept": "us-gaap:RetainedEarningsAccumulatedDefic | 2011-03-31 | sec_edgar |
| sga_expense | {"amount": 283000000, "concept": "us-gaap:SellingGeneralAndAdministrativeExpense", "curren | 2012-03-31 | sec_edgar |
| sga_expense | {"unit": "INR", "value": 13261000000, "concept": "us-gaap:SellingGeneralAndAdministrativeE | 2011-03-31 | sec_edgar |
| sga_expense | {"unit": "INR", "value": 17854000000, "concept": "us-gaap:SellingGeneralAndAdministrativeE | 2010-03-31 | sec_edgar |
| stockholders_equity | {"amount": -273000000, "concept": "us-gaap:StockholdersEquity", "currency": "USD"} | 2012-03-31 | sec_edgar |
| stockholders_equity | {"unit": "INR", "value": 27772000000, "concept": "us-gaap:StockholdersEquity"} | 2011-03-31 | sec_edgar |
| stockholders_equity | {"unit": "INR", "value": 60667000000, "concept": "us-gaap:StockholdersEquity"} | 2010-03-31 | sec_edgar |
| stockholders_equity | {"unit": "INR", "value": 86220000000, "concept": "us-gaap:StockholdersEquity"} | 2009-03-31 | sec_edgar |
| total_assets | {"amount": 4708000000, "concept": "us-gaap:Assets", "currency": "USD"} | 2012-03-31 | sec_edgar |
| total_assets | {"unit": "INR", "value": 245049000000, "concept": "us-gaap:Assets"} | 2011-03-31 | sec_edgar |
| total_liabilities | {"amount": 4981000000, "concept": "us-gaap:Liabilities", "currency": "USD"} | 2012-03-31 | sec_edgar |
| total_liabilities | {"unit": "INR", "value": 217277000000, "concept": "us-gaap:Liabilities"} | 2011-03-31 | sec_edgar |
| total_liabilities_and_equity | {"amount": 4708000000, "concept": "us-gaap:LiabilitiesAndStockholdersEquity", "currency": | 2012-03-31 | sec_edgar |
| total_liabilities_and_equity | {"unit": "INR", "value": 245049000000, "concept": "us-gaap:LiabilitiesAndStockholdersEquit | 2011-03-31 | sec_edgar |
| xbrl:AccountsPayableCurrent | {"amount": 80000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:AccountsPayableCurrent | {"unit": "INR", "value": 4090000000} | 2011-03-31 | sec_edgar |
| xbrl:AccountsReceivableNetCurrent | {"amount": 21000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:AccountsReceivableNetCurrent | {"unit": "INR", "value": 1179000000} | 2011-03-31 | sec_edgar |
| xbrl:AdditionalPaidInCapitalCommonStock | {"amount": 131000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:AdditionalPaidInCapitalCommonStock | {"unit": "INR", "value": 6649000000} | 2011-03-31 | sec_edgar |
| xbrl:Assets | {"amount": 4708000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:Assets | {"unit": "INR", "value": 245049000000} | 2011-03-31 | sec_edgar |
| xbrl:AssetsCurrent | {"amount": 295000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:AssetsCurrent | {"unit": "INR", "value": 17063000000} | 2011-03-31 | sec_edgar |
| xbrl:CashAndCashEquivalentsAtCarryingValue | {"amount": 18000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:CashAndCashEquivalentsAtCarryingValue | {"amount": 25000000, "currency": "USD"} | 2011-03-31 | sec_edgar |
| xbrl:CashAndCashEquivalentsAtCarryingValue | {"unit": "INR", "value": 1056000000} | 2010-03-31 | sec_edgar |
| xbrl:CashAndCashEquivalentsAtCarryingValue | {"unit": "INR", "value": 1419000000} | 2009-03-31 | sec_edgar |
| xbrl:CashAndCashEquivalentsPeriodIncreaseDecrease | {"amount": -7000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:CashAndCashEquivalentsPeriodIncreaseDecrease | {"unit": "INR", "value": 220000000} | 2011-03-31 | sec_edgar |
| xbrl:CashAndCashEquivalentsPeriodIncreaseDecrease | {"unit": "INR", "value": -363000000} | 2010-03-31 | sec_edgar |
| xbrl:CommonStockParOrStatedValuePerShare | {"per": "shares", "amount": 10, "currency": "INR"} | 2012-03-31 | sec_edgar |
| xbrl:CommonStockParOrStatedValuePerShare | {"per": "shares", "amount": 10, "currency": "INR"} | 2011-03-31 | sec_edgar |
| xbrl:CommonStockSharesAuthorized | {"unit": "shares", "value": 800000000} | 2012-03-31 | sec_edgar |
| xbrl:CommonStockSharesAuthorized | {"unit": "shares", "value": 800000000} | 2011-03-31 | sec_edgar |
| xbrl:CommonStockSharesIssued | {"unit": "shares", "value": 630000000} | 2012-03-31 | sec_edgar |
| xbrl:CommonStockSharesIssued | {"unit": "shares", "value": 630000000} | 2011-03-31 | sec_edgar |
| xbrl:CommonStockSharesOutstanding | {"unit": "shares", "value": 630000000} | 2012-03-31 | sec_edgar |
| xbrl:CommonStockSharesOutstanding | {"unit": "shares", "value": 630000000} | 2011-03-31 | sec_edgar |
| xbrl:CommonStockValue | {"amount": 124000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:CommonStockValue | {"unit": "INR", "value": 6300000000} | 2011-03-31 | sec_edgar |
| xbrl:CostOfServices | {"amount": 748000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:CostOfServices | {"unit": "INR", "value": 37781000000} | 2011-03-31 | sec_edgar |
| xbrl:CostOfServices | {"unit": "INR", "value": 47938000000} | 2010-03-31 | sec_edgar |
| xbrl:CustomerDepositsNoncurrent | {"amount": 127000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:CustomerDepositsNoncurrent | {"unit": "INR", "value": 8159000000} | 2011-03-31 | sec_edgar |
| xbrl:DeferredIncomeTaxExpenseBenefit | {"amount": 0, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:DeferredIncomeTaxExpenseBenefit | {"unit": "INR", "value": 5421000000} | 2011-03-31 | sec_edgar |
| xbrl:DeferredIncomeTaxExpenseBenefit | {"unit": "INR", "value": -4384000000} | 2010-03-31 | sec_edgar |
| xbrl:DepreciationAndAmortization | {"amount": 317000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:DepreciationAndAmortization | {"unit": "INR", "value": 15205000000} | 2011-03-31 | sec_edgar |
| xbrl:DepreciationAndAmortization | {"unit": "INR", "value": 14759000000} | 2010-03-31 | sec_edgar |
| xbrl:DueFromRelatedPartiesNoncurrent | {"amount": 999000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:DueFromRelatedPartiesNoncurrent | {"unit": "INR", "value": 44848000000} | 2011-03-31 | sec_edgar |
| xbrl:DueToRelatedPartiesCurrent | {"amount": 52000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:DueToRelatedPartiesCurrent | {"unit": "INR", "value": 2550000000} | 2011-03-31 | sec_edgar |
| xbrl:DueToRelatedPartiesNoncurrent | {"amount": 403000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:DueToRelatedPartiesNoncurrent | {"unit": "INR", "value": 17287000000} | 2011-03-31 | sec_edgar |
| xbrl:EarningsPerShareBasicAndDiluted | {"per": "shares", "amount": -1.3, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:EarningsPerShareBasicAndDiluted | {"unit": "INR", "value": -52.21} | 2011-03-31 | sec_edgar |
| xbrl:EarningsPerShareBasicAndDiluted | {"unit": "INR", "value": -40.56} | 2010-03-31 | sec_edgar |
| xbrl:EquityMethodInvestments | {"amount": 5000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:EquityMethodInvestments | {"unit": "INR", "value": 254000000} | 2011-03-31 | sec_edgar |
| xbrl:FiniteLivedIntangibleAssetsNet | {"amount": 1738000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:FiniteLivedIntangibleAssetsNet | {"unit": "INR", "value": 94749000000} | 2011-03-31 | sec_edgar |
| xbrl:GainLossOnSaleOfPropertyPlantEquipment | {"amount": -3000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:GainLossOnSaleOfPropertyPlantEquipment | {"unit": "INR", "value": -75000000} | 2011-03-31 | sec_edgar |
| xbrl:GainLossOnSaleOfPropertyPlantEquipment | {"unit": "INR", "value": 8000000} | 2010-03-31 | sec_edgar |
| xbrl:HeldToMaturitySecuritiesNoncurrent | {"amount": 48000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:HeldToMaturitySecuritiesNoncurrent | {"unit": "INR", "value": 2419000000} | 2011-03-31 | sec_edgar |
| xbrl:ImpactOfRestatementOnOpeningRetainedEarningsNetOfTax | {"unit": "INR", "value": -2571000000} | 2009-03-31 | sec_edgar |
| xbrl:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | {"amount": -819000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | {"unit": "INR", "value": -23634000000} | 2011-03-31 | sec_edgar |
| xbrl:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | {"unit": "INR", "value": -37365000000} | 2010-03-31 | sec_edgar |
| xbrl:IncomeLossFromEquityMethodInvestments | {"amount": 0, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:IncomeLossFromEquityMethodInvestments | {"unit": "INR", "value": 15000000} | 2011-03-31 | sec_edgar |
| xbrl:IncomeLossFromEquityMethodInvestments | {"unit": "INR", "value": 5000000} | 2010-03-31 | sec_edgar |
| xbrl:IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions | {"amount": 0, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions | {"unit": "INR", "value": 31000000} | 2011-03-31 | sec_edgar |
| xbrl:IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions | {"unit": "INR", "value": 101000000} | 2010-03-31 | sec_edgar |
| xbrl:IncomeTaxesPaidNet | {"amount": -11000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:IncomeTaxesPaidNet | {"unit": "INR", "value": 2608000000} | 2011-03-31 | sec_edgar |
| xbrl:IncomeTaxesPaidNet | {"unit": "INR", "value": -1406000000} | 2010-03-31 | sec_edgar |
| xbrl:IncomeTaxExpenseBenefit | {"amount": 0, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:IncomeTaxExpenseBenefit | {"unit": "INR", "value": -9276000000} | 2011-03-31 | sec_edgar |
| xbrl:IncomeTaxExpenseBenefit | {"unit": "INR", "value": -11806000000} | 2010-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInAccountsPayableTrade | {"amount": 7000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInAccountsPayableTrade | {"unit": "INR", "value": -3651000000} | 2011-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInAccountsPayableTrade | {"unit": "INR", "value": 3809000000} | 2010-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInDueFromRelatedParties | {"amount": 118000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInDueFromRelatedParties | {"unit": "INR", "value": 4925000000} | 2011-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInDueFromRelatedParties | {"unit": "INR", "value": 3618000000} | 2010-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInDueToRelatedParties | {"amount": 65000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInDueToRelatedParties | {"unit": "INR", "value": -104856000000} | 2011-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInDueToRelatedParties | {"unit": "INR", "value": 2560000000} | 2010-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInEmployeeRelatedLiabilities | {"amount": 194000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInEmployeeRelatedLiabilities | {"unit": "INR", "value": 10365000000} | 2011-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInEmployeeRelatedLiabilities | {"unit": "INR", "value": 26464000000} | 2010-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInInventories | {"amount": -5000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInInventories | {"unit": "INR", "value": -315000000} | 2011-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInInventories | {"unit": "INR", "value": -318000000} | 2010-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities | {"amount": 30000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities | {"unit": "INR", "value": -2042000000} | 2011-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities | {"unit": "INR", "value": 2302000000} | 2010-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInOtherReceivables | {"amount": -42000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInOtherReceivables | {"unit": "INR", "value": -5003000000} | 2011-03-31 | sec_edgar |
| xbrl:IncreaseDecreaseInOtherReceivables | {"unit": "INR", "value": 3836000000} | 2010-03-31 | sec_edgar |
| xbrl:InterestAndOtherIncome | {"amount": -152000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:InterestAndOtherIncome | {"unit": "INR", "value": 4463000000} | 2011-03-31 | sec_edgar |
| xbrl:InterestAndOtherIncome | {"unit": "INR", "value": 3119000000} | 2010-03-31 | sec_edgar |
| xbrl:InterestPaid | {"amount": -187000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:InterestPaid | {"unit": "INR", "value": 4519000000} | 2011-03-31 | sec_edgar |
| xbrl:InterestPaid | {"unit": "INR", "value": 13000000} | 2010-03-31 | sec_edgar |
| xbrl:InventoryNet | {"amount": 18000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:InventoryNet | {"unit": "INR", "value": 1177000000} | 2011-03-31 | sec_edgar |
| xbrl:InvestmentIncomeInterest | {"amount": 0, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:InvestmentIncomeInterest | {"unit": "INR", "value": 473000000} | 2011-03-31 | sec_edgar |
| xbrl:InvestmentIncomeInterest | {"unit": "INR", "value": 3986000000} | 2010-03-31 | sec_edgar |
| xbrl:Liabilities | {"amount": 4981000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:Liabilities | {"unit": "INR", "value": 217277000000} | 2011-03-31 | sec_edgar |
| xbrl:LiabilitiesAndStockholdersEquity | {"amount": 4708000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:LiabilitiesAndStockholdersEquity | {"unit": "INR", "value": 245049000000} | 2011-03-31 | sec_edgar |
| xbrl:LiabilitiesCurrent | {"amount": 1252000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:LiabilitiesCurrent | {"unit": "INR", "value": 53963000000} | 2011-03-31 | sec_edgar |
| xbrl:LongTermLoansFromBank | {"amount": 1376000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:LongTermLoansFromBank | {"unit": "INR", "value": 55340000000} | 2011-03-31 | sec_edgar |
| xbrl:NetCashProvidedByUsedInFinancingActivities | {"amount": 431000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:NetCashProvidedByUsedInFinancingActivities | {"unit": "INR", "value": 74557000000} | 2011-03-31 | sec_edgar |
| xbrl:NetCashProvidedByUsedInInvestingActivities | {"amount": -153000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:NetCashProvidedByUsedInInvestingActivities | {"unit": "INR", "value": 37924000000} | 2011-03-31 | sec_edgar |
| xbrl:NetCashProvidedByUsedInInvestingActivities | {"unit": "INR", "value": -13521000000} | 2010-03-31 | sec_edgar |
| xbrl:NetCashProvidedByUsedInOperatingActivities | {"amount": -285000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:NetCashProvidedByUsedInOperatingActivities | {"unit": "INR", "value": -112260000000} | 2011-03-31 | sec_edgar |
| xbrl:NetCashProvidedByUsedInOperatingActivities | {"unit": "INR", "value": 13158000000} | 2010-03-31 | sec_edgar |
| xbrl:NetIncomeLoss | {"amount": -819000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:NetIncomeLoss | {"unit": "INR", "value": -32895000000} | 2011-03-31 | sec_edgar |
| xbrl:NetIncomeLoss | {"unit": "INR", "value": -25553000000} | 2010-03-31 | sec_edgar |
| xbrl:OperatingIncomeLoss | {"amount": -667000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:OperatingIncomeLoss | {"unit": "INR", "value": -28570000000} | 2011-03-31 | sec_edgar |
| xbrl:OperatingIncomeLoss | {"unit": "INR", "value": -44471000000} | 2010-03-31 | sec_edgar |
| xbrl:OtherAssetsNoncurrent | {"amount": 31000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:OtherAssetsNoncurrent | {"unit": "INR", "value": 2491000000} | 2011-03-31 | sec_edgar |
| xbrl:OtherReceivablesNetCurrent | {"amount": 189000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:OtherReceivablesNetCurrent | {"unit": "INR", "value": 10837000000} | 2011-03-31 | sec_edgar |
| xbrl:OtherRestrictedAssetsNoncurrent | {"amount": 0, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:OtherRestrictedAssetsNoncurrent | {"unit": "INR", "value": 12000000} | 2011-03-31 | sec_edgar |
| xbrl:OtherShortTermInvestments | {"amount": 10000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:OtherShortTermInvestments | {"unit": "INR", "value": 459000000} | 2011-03-31 | sec_edgar |
| xbrl:PaymentsForProceedsFromShortTermInvestments | {"amount": 1000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:PaymentsForProceedsFromShortTermInvestments | {"unit": "INR", "value": -47376000000} | 2011-03-31 | sec_edgar |
| xbrl:PaymentsForProceedsFromShortTermInvestments | {"unit": "INR", "value": 1110000000} | 2010-03-31 | sec_edgar |
| xbrl:PaymentsToAcquireProductiveAssets | {"amount": 157000000, "currency": "USD"} | 2012-03-31 | sec_edgar |
| xbrl:PaymentsToAcquireProductiveAssets | {"unit": "INR", "value": 10702000000} | 2011-03-31 | sec_edgar |
| xbrl:PaymentsToAcquireProductiveAssets | {"unit": "INR", "value": 12146000000} | 2010-03-31 | sec_edgar |
| xbrl:ProceedsFromIssuanceOfLongTermDebt | {"amount": 288000000, "currency": "USD"} | 2012-03-31 | sec_edgar |