v3.26.1
Hedging activities and derivatives (Tables)
12 Months Ended
Mar. 31, 2026
Disclosure of detailed information about hedges [abstract]  
Summary Of Foreign Currency and Interest Rate Risk

Forward contracts, swaps, call option and call spreads measured at FVTOCI are designated as hedging instruments in cash flow hedges of interest and principal payments in USD, CNH and JPY.

 

 

 

 

March 31, 2025

 

 

 

March 31, 2026

 

 

 

 

Assets

 

 

Liabilities

 

 

 

Assets

 

 

 

Liabilities

 

 

 

 

(INR)

 

 

(INR)

 

 

 

(INR)

 

 

 

(INR)

 

Derivative contracts designated as hedging instruments - Non-current

 

 

 

3,309

 

 

 

217

 

 

 

 

5,851

 

 

 

 

89

 

Derivative contracts designated as hedging instruments - Current

 

 

 

4,089

 

 

 

830

 

 

 

 

9,724

 

 

 

 

28

 

Summary Of Hedge Reserve Movement

Hedge reserve movement

a)
Cash flow hedge reserve

 

 

 

 

For the year ended March 31,

 

 

 

 

2024

 

 

2025

 

 

 

2026

 

 

 

2026

 

 

 

 

(INR)

 

 

(INR)

 

 

 

(INR)

 

 

 

(USD)

 

Opening balance (after non-controlling interest)

 

 

 

1,679

 

 

 

32

 

 

 

 

(30

)

 

 

 

(0

)

Gain / (loss) recognised on cash flow hedges

 

 

 

(2,715

)

 

 

3,015

 

 

 

 

18,463

 

 

 

 

197

 

(Gain) / loss reclassified to profit or loss (under head finance costs)

 

 

 

406

 

 

 

(2,370

)

 

 

 

(15,539

)

 

 

 

(166

)

(Gain) / loss reclassified to profit or loss on unwinding of derivative contract

 

 

 

(11

)

 

 

(12

)

 

 

 

 

 

 

 

 

(Gain) / loss reclassified to non-financial assets or liabilities as basis adjustment (under head property, plant and equipment)

 

(75

)

 

 

(718

)

 

 

 

(971

)

 

 

 

(10

)

Income tax relating on cash flow hedges*

 

 

 

594

 

 

 

(12

)

 

 

 

(373

)

 

 

 

(4

)

Closing balance

 

 

 

(122

)

 

 

(65

)

 

 

 

1,550

 

 

 

 

17

 

Less: Non-controlling interest movement

 

 

 

154

 

 

 

35

 

 

 

 

(67

)

 

 

 

(1

)

Closing balance (after non-controlling interest)

 

 

 

32

 

 

 

(30

)

 

 

 

1,483

 

 

 

 

16

 

 

b)
Cost of hedge reserve on cash flow hedges

 

Opening balance (after non-controlling interest)

 

 

 

(2,297

)

 

 

(1,899

)

 

 

 

(560

)

 

 

 

(6

)

Effective portion of changes in fair value

 

 

 

(3,346

)

 

 

(2,160

)

 

 

 

(2,549

)

 

 

 

(27

)

Amount reclassified to profit or loss (under head "Finance costs and fair value change in derivative instruments")

 

2,435

 

 

 

1,421

 

 

 

 

1,129

 

 

 

 

12

 

Loss reclassified to non-financial assets or liabilities as basis adjustment (under head property, plant and equipment)

 

1,177

 

 

 

2,624

 

 

 

 

1,484

 

 

 

 

16

 

(Gain) / loss reclassified to profit or loss on unwinding of derivative contract

 

400

 

 

 

0

 

 

 

 

187

 

 

 

 

2

 

Income tax relating to cost of hedge reserve*

 

 

 

(243

)

 

 

(458

)

 

 

 

(91

)

 

 

 

(1

)

Closing balance

 

 

 

(1,874

)

 

 

(472

)

 

 

 

(400

)

 

 

 

(4

)

Less: Non-controlling interest movement

 

 

 

(25

)

 

 

(88

)

 

 

 

 

 

 

 

 

Closing balance (after non-controlling interest)

 

 

 

(1,899

)

 

 

(560

)

 

 

 

(400

)

 

 

 

(4

)

 

c)
Total Hedge reserve movement (a+b)

 

Opening balance (after non-controlling interest)

 

 

 

(618

)

 

 

(1,867

)

 

 

 

(590

)

 

 

 

(6

)

OCI for the year

 

 

 

(2,205

)

 

 

(93

)

 

 

 

1,227

 

 

 

 

13

 

(Gain) / loss reclassified to non-financial assets or liabilities as basis adjustment (under head property, plant and equipment)

 

827

 

 

 

1,422

 

 

 

 

513

 

 

 

 

5

 

Attributable to non-controlling interests

 

 

 

129

 

 

 

(53

)

 

 

 

(67

)

 

 

 

(1

)

Closing balance (after non-controlling interest)

 

 

 

(1,867

)

 

 

(590

)

 

 

 

1,083

 

 

 

 

12

 

 

*includes amount recognised directly in equity