| Annual Financials |  2015  |  2016  |  2017  |  2018  |  2019  |  2020  |  2021  |  2022  |  2023  |  2024  |  2025  |  TTM  | 
| Revenue |  398  |  450  |  563  |  664  |  753  |  824  |  595  |  917  |  1,898  |  1,736  |  1,531  |  1,505  | 
| Expenses |  329  |  380  |  451  |  512  |  574  |  634  |  452  |  706  |  1,472  |  1,302  |  1,242  |  1,261  | 
| EBITDA |  69  |  70  |  112  |  152  |  179  |  190  |  143  |  211  |  426  |  434  |  290  |  245  | 
| Operating Profit % |  16 % |  12 % |  17 % |  19 % |  22 % |  22 % |  23 % |  21 % |  22 % |  24 % |  18 % |  15 % | 
| Depreciation |  53  |  33  |  40  |  45  |  48  |  55  |  58  |  66  |  207  |  151  |  157  |  152  | 
| Interest |  16  |  25  |  25  |  24  |  21  |  20  |  18  |  22  |  35  |  30  |  26  |  24  | 
| Profit Before Tax |  0  |  10  |  48  |  83  |  110  |  115  |  67  |  123  |  184  |  253  |  107  |  68  | 
| Tax |  -8  |  -3  |  2  |  15  |  22  |  23  |  17  |  22  |  -9  |  42  |  -12  |  2  | 
| Net Profit |  8  |  13  |  46  |  69  |  88  |  92  |  50  |  101  |  192  |  211  |  119  |  99  | 
| EPS in ₹ |  7.84  |  13.12  |  45.55  |  68.67  |  8.78  |  9.18  |  4.95  |  10.07  |  19.22  |  21.12  |  11.86  |  9.90  | 











