Property, plant and equipment - Summary of Property, plant and equipment (Detail) ₨ in Millions, $ in Millions |
12 Months Ended |
|
Mar. 31, 2026
INR (₨)
|
Mar. 31, 2026
USD ($)
|
Mar. 31, 2025
INR (₨)
|
Mar. 31, 2024
INR (₨)
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
₨ 747,066
|
|
₨ 678,600
|
|
| Charge for the year |
23,503
|
$ 250
|
18,941
|
₨ 15,628
|
| Property, plant and equipment |
809,882
|
8,631
|
747,066
|
678,600
|
| Cost |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
846,856
|
|
759,854
|
605,021
|
| Additions during the year |
125,990
|
|
102,944
|
182,648
|
| Acquisition through business combination |
82
|
|
|
|
| Disposals and adjustments during the year |
(41,680)
|
|
(15,942)
|
(27,815)
|
| Exchange differences |
8
|
|
|
|
| Property, plant and equipment |
931,256
|
|
846,856
|
759,854
|
| Accumulated depreciation |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
99,789
|
|
81,254
|
66,666
|
| Charge for the year |
23,503
|
|
18,941
|
15,628
|
| Depreciation capitalised during the year |
427
|
|
570
|
369
|
| Disposals and adjustments during the year |
(2,345)
|
|
|
(1,409)
|
| Disposals during the year |
|
|
(976)
|
|
| Property, plant and equipment |
121,374
|
|
99,789
|
81,254
|
| Freehold Land |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
14,309
|
|
14,225
|
|
| Property, plant and equipment |
14,623
|
156
|
14,309
|
14,225
|
| Freehold Land | Cost |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
14,309
|
|
14,225
|
13,881
|
| Additions during the year |
370
|
|
273
|
597
|
| Disposals and adjustments during the year |
(56)
|
|
(189)
|
(253)
|
| Property, plant and equipment |
14,623
|
|
14,309
|
14,225
|
| Plant and equipment |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
585,536
|
|
503,441
|
|
| Property, plant and equipment |
671,052
|
7,152
|
585,536
|
503,441
|
| Plant and equipment | Cost |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
684,532
|
|
584,123
|
476,679
|
| Additions during the year |
1,103
|
|
857
|
9,579
|
| Acquisition through business combination |
49
|
|
|
|
| Disposals and adjustments during the year |
(40,049)
|
|
(15,710)
|
(27,544)
|
| Transfer/Capitalised during the year |
145,651
|
|
115,262
|
125,409
|
| Exchange differences |
5
|
|
|
|
| Property, plant and equipment |
791,291
|
|
684,532
|
584,123
|
| Plant and equipment | Accumulated depreciation |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
98,996
|
|
80,682
|
66,270
|
| Charge for the year |
23,434
|
|
18,860
|
15,526
|
| Depreciation capitalised during the year |
127
|
|
407
|
283
|
| Disposals and adjustments during the year |
(2,318)
|
|
|
(1,397)
|
| Disposals during the year |
|
|
(953)
|
|
| Property, plant and equipment |
120,239
|
|
98,996
|
80,682
|
| Building |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
4,713
|
|
1,317
|
|
| Property, plant and equipment |
4,764
|
51
|
4,713
|
1,317
|
| Building | Cost |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
4,869
|
|
1,401
|
130
|
| Transfer/Capitalised during the year |
222
|
|
3,468
|
1,271
|
| Property, plant and equipment |
5,091
|
|
4,869
|
1,401
|
| Building | Accumulated depreciation |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
156
|
|
84
|
37
|
| Charge for the year |
13
|
|
16
|
15
|
| Depreciation capitalised during the year |
158
|
|
56
|
32
|
| Property, plant and equipment |
327
|
|
156
|
84
|
| Leasehold improvements |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
13
|
|
18
|
|
| Property, plant and equipment |
39
|
0
|
13
|
18
|
| Leasehold improvements | Cost |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
149
|
|
149
|
143
|
| Additions during the year |
35
|
|
|
6
|
| Disposals and adjustments during the year |
(3)
|
|
|
|
| Property, plant and equipment |
181
|
|
149
|
149
|
| Leasehold improvements | Accumulated depreciation |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
136
|
|
131
|
125
|
| Charge for the year |
3
|
|
2
|
4
|
| Depreciation capitalised during the year |
6
|
|
3
|
2
|
| Disposals and adjustments during the year |
(3)
|
|
|
|
| Property, plant and equipment |
142
|
|
136
|
131
|
| Office equipments |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
80
|
|
88
|
|
| Property, plant and equipment |
130
|
1
|
80
|
88
|
| Office equipments | Cost |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
185
|
|
176
|
113
|
| Additions during the year |
84
|
|
26
|
69
|
| Acquisition through business combination |
12
|
|
|
|
| Disposals and adjustments during the year |
(11)
|
|
(17)
|
(6)
|
| Exchange differences |
1
|
|
|
|
| Property, plant and equipment |
271
|
|
185
|
176
|
| Office equipments | Accumulated depreciation |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
105
|
|
88
|
69
|
| Charge for the year |
14
|
|
11
|
17
|
| Depreciation capitalised during the year |
22
|
|
14
|
6
|
| Disposals and adjustments during the year |
|
|
|
(4)
|
| Disposals during the year |
|
|
(8)
|
|
| Property, plant and equipment |
141
|
|
105
|
88
|
| Furniture and fixtures |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
87
|
|
75
|
|
| Property, plant and equipment |
137
|
1
|
87
|
75
|
| Furniture and fixtures | Cost |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
153
|
|
129
|
91
|
| Additions during the year |
58
|
|
26
|
40
|
| Acquisition through business combination |
12
|
|
|
|
| Disposals and adjustments during the year |
(3)
|
|
(2)
|
(2)
|
| Exchange differences |
1
|
|
|
|
| Property, plant and equipment |
221
|
|
153
|
129
|
| Furniture and fixtures | Accumulated depreciation |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
66
|
|
54
|
44
|
| Charge for the year |
13
|
|
9
|
8
|
| Depreciation capitalised during the year |
6
|
|
4
|
2
|
| Disposals and adjustments during the year |
(1)
|
|
|
|
| Disposals during the year |
|
|
(1)
|
|
| Property, plant and equipment |
84
|
|
66
|
54
|
| Computers |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
288
|
|
271
|
|
| Property, plant and equipment |
189
|
2
|
288
|
271
|
| Computers | Cost |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
618
|
|
486
|
261
|
| Additions during the year |
37
|
|
156
|
235
|
| Acquisition through business combination |
9
|
|
|
|
| Disposals and adjustments during the year |
(35)
|
|
(24)
|
(10)
|
| Exchange differences |
1
|
|
|
|
| Property, plant and equipment |
630
|
|
618
|
486
|
| Computers | Accumulated depreciation |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
330
|
|
215
|
121
|
| Charge for the year |
26
|
|
43
|
58
|
| Depreciation capitalised during the year |
108
|
|
86
|
44
|
| Disposals and adjustments during the year |
(23)
|
|
|
(8)
|
| Disposals during the year |
|
|
(14)
|
|
| Property, plant and equipment |
441
|
|
330
|
215
|
| Capital work in progress |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
142,040
|
|
159,165
|
|
| Property, plant and equipment |
118,948
|
$ 1,268
|
142,040
|
159,165
|
| Capital work in progress | Cost |
|
|
|
|
| Disclosure of detailed information about property, plant and equipment [line items] |
|
|
|
|
| Property, plant and equipment |
142,040
|
|
159,165
|
113,723
|
| Additions during the year |
124,303
|
|
101,606
|
172,122
|
| Disposals and adjustments during the year |
(1,523)
|
|
|
|
| Transfer/Capitalised during the year |
(145,873)
|
|
(118,730)
|
(126,680)
|
| Property, plant and equipment |
₨ 118,948
|
|
₨ 142,040
|
₨ 159,165
|