| Particulars | Mar 2025 (Rs.Cr)
 | Mar 2024 (Rs.Cr)
 | Mar 2023 (Rs.Cr)
 | Mar 2022 (Rs.Cr)
 | Mar 2021 (Rs.Cr)
 | Mar 2020 (Rs.Cr)
 | 
|  |  |  |  |  |  | 
| Share Capital | 9.22 | 9.22 | 9.22 | 9.22 | 9.22 | 9.22 | 
| Reserves Total | 2863.53 | 2866.83 | 2607.35 | 2580.98 | 2650.60 | 2715.66 | 
| Equity Share Warrants | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 
| Equity Application Money | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 
| Total Shareholders Funds | 2872.75 | 2876.05 | 2616.57 | 2590.20 | 2659.82 | 2724.88 | 
| Secured Loans | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 
| Unsecured Loans | 2.11 | 5.17 | 4.20 | 0.28 | 0.50 | 0.00 | 
| Total Debt | 2.11 | 5.17 | 4.20 | 0.28 | 0.50 | 0.00 | 
| Other Liabilities | 14.38 | 13.70 | 12.67 | 11.14 | 11.33 | 11.65 | 
| Total Liabilities | 2889.24 | 2894.92 | 2633.44 | 2601.62 | 2671.65 | 2736.53 | 
|  |  |  |  |  |  | 
| Gross Block | 611.08 | 607.17 | 597.81 | 592.32 | 582.53 | 580.05 | 
| Less : Accumulated Depreciation | 305.67 | 296.38 | 284.37 | 275.14 | 263.13 | 245.22 | 
| Less:Impairment of Assets | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 
| Net Block | 305.41 | 310.79 | 313.44 | 317.18 | 319.40 | 334.83 | 
| Lease Adjustment | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 
| Capital Work in Progress | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 
| Producing Properties | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 
| Investments | 668.72 | 751.59 | 762.14 | 902.02 | 977.02 | 1016.26 | 
| Current Assets, Loans & Advances |  |  |  |  |  |  | 
| Inventories | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 
| Sundry Debtors | 3.05 | 9.42 | 9.15 | 5.98 | 4.58 | 11.86 | 
| Cash and Bank Balance | 1610.48 | 1114.75 | 1252.20 | 1105.64 | 1067.43 | 1056.81 | 
| Loans and Advances | 115.06 | 138.45 | 110.70 | 87.04 | 95.74 | 114.54 | 
| Total Current Assets | 1728.59 | 1262.62 | 1372.05 | 1198.66 | 1167.75 | 1183.21 | 
| Less : Current Liabilities and Provisions |  |  |  |  |  |  | 
| Current Liabilities | 151.47 | 136.28 | 190.98 | 108.40 | 110.26 | 87.01 | 
| Provisions | 3.13 | 8.83 | 7.73 | 6.83 | 6.43 | 4.23 | 
| Total Current Liabilities & Provisions | 154.61 | 145.11 | 198.71 | 115.23 | 116.69 | 91.24 | 
| Net Current Assets | 1573.98 | 1117.51 | 1173.34 | 1083.43 | 1051.06 | 1091.97 | 
| Miscellaneous Expenses not written off | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 
| Deferred Tax Assets | 47.52 | 48.07 | 47.60 | 103.10 | 99.57 | 12.64 | 
| Deferred Tax Liability | 2.54 | 1.94 | 0.38 | 19.10 | 16.78 | 16.62 | 
| Net Deferred Tax | 44.98 | 46.13 | 47.22 | 84.00 | 82.79 | -3.98 | 
| Other Assets | 296.14 | 668.90 | 337.31 | 214.98 | 241.37 | 297.46 | 
| Total Assets | 2889.23 | 2894.92 | 2633.45 | 2601.61 | 2671.64 | 2736.53 | 
| Contingent Liabilities | 244.08 | 240.32 | 184.65 | 187.06 | 269.66 | 269.66 |