| Quarterly Financials |  Jun 2018  |  Sept 2018  |  Dec 2018  |  Jun 2019  |  Sept 2019  |  Dec 2019  |  Mar 2020  |  Jun 2020  |  Sept 2020  |  Dec 2020  |  Mar 2021  |  Jun 2021  |  Sept 2021  |  Dec 2021  |  Mar 2022  |  Jun 2022  |  Sept 2022  |  Dec 2022  |  Mar 2023  |  Jun 2023  |  Sept 2023  |  Dec 2023  |  Mar 2024  |  Jun 2024  |  Sept 2024  |  Dec 2024  |  Mar 2025  |  Jun 2025  | 
| Revenue |  502  |  429  |  412  |  451  |  409  |  413  |  380  |  292  |  392  |  409  |  553  |  513  |  508  |  521  |  610  |  673  |  577  |  531  |  645  |  619  |  615  |  615  |  609  |  671  |  671  |  655  |  644  |  708  | 
| Expenses |  434  |  376  |  349  |  389  |  349  |  327  |  286  |  279  |  337  |  364  |  436  |  450  |  457  |  470  |  518  |  587  |  513  |  464  |  556  |  528  |  511  |  511  |  485  |  574  |  569  |  547  |  514  |  598  | 
| EBITDA |  68  |  54  |  63  |  62  |  61  |  86  |  94  |  13  |  55  |  45  |  117  |  62  |  51  |  51  |  91  |  87  |  64  |  67  |  89  |  91  |  104  |  103  |  124  |  97  |  102  |  109  |  130  |  111  | 
| Operating Profit % |  13 % |  8 % |  12 % |  10 % |  10 % |  13 % |  18 % |  -0 % |  8 % |  6 % |  13 % |  8 % |  7 % |  7 % |  10 % |  10 % |  7 % |  10 % |  9 % |  11 % |  13 % |  13 % |  16 % |  10 % |  11 % |  14 % |  16 % |  13 % | 
| Depreciation |  7  |  7  |  7  |  11  |  10  |  11  |  20  |  13  |  13  |  14  |  15  |  14  |  14  |  14  |  14  |  14  |  14  |  14  |  14  |  15  |  14  |  14  |  16  |  15  |  14  |  15  |  16  |  15  | 
| Interest |  1  |  1  |  2  |  3  |  3  |  4  |  5  |  4  |  3  |  2  |  3  |  4  |  3  |  4  |  3  |  5  |  4  |  5  |  5  |  6  |  5  |  5  |  6  |  6  |  5  |  9  |  6  |  7  | 
| Profit Before Tax |  60  |  46  |  54  |  48  |  47  |  71  |  70  |  -5  |  38  |  29  |  100  |  45  |  35  |  33  |  74  |  68  |  46  |  47  |  70  |  70  |  85  |  83  |  103  |  76  |  82  |  84  |  107  |  89  | 
| Tax |  14  |  25  |  -2  |  18  |  7  |  10  |  22  |  -1  |  8  |  10  |  24  |  8  |  8  |  6  |  27  |  12  |  11  |  10  |  27  |  13  |  22  |  16  |  28  |  12  |  20  |  20  |  32  |  20  | 
| Net Profit |  47  |  21  |  56  |  31  |  40  |  61  |  47  |  -4  |  30  |  19  |  75  |  36  |  27  |  27  |  47  |  56  |  35  |  37  |  44  |  57  |  64  |  68  |  75  |  65  |  63  |  64  |  75  |  69  | 
| EPS in ₹ |  14.30  |  4.96  |  25.18  |  13.78  |  17.89  |  17.48  |  21.37  |  -0.43  |  8.97  |  5.86  |  21.52  |  10.48  |  7.94  |  7.96  |  13.50  |  16.00  |  10.24  |  11.00  |  12.73  |  16.61  |  18.34  |  19.38  |  21.35  |  18.56  |  18.23  |  18.79  |  0.22  |  2.01  | 












