v3.26.1
Related parties (Details 1) - INR (₨)
₨ in Millions
Mar. 31, 2026
Mar. 31, 2025
Kunshan Rotam Reddy Pharmaceuticals Company Limited [member]    
Due from/to related parties [Line Items]    
Amounts receivable, related party transactions ₨ 45 ₨ 41
Kunshan Rotam Reddy Medicine Company Limited [Member]    
Due from/to related parties [Line Items]    
Amounts receivable, related party transactions 62 0
DRES energy private limited [Member]    
Due from/to related parties [Line Items]    
Amounts receivable, related party transactions 0 1
Amounts payable, related party transactions 16 3
Key management personnel (towards rent deposits) [member]    
Due from/to related parties [Line Items]    
Amounts receivable, related party transactions 8 8
Zenfold Sustainable Technology Private Limited [Member]    
Due from/to related parties [Line Items]    
Amounts payable, related party transactions 12 22
Indus Projects Private Limited [Member]    
Due from/to related parties [Line Items]    
Amounts payable, related party transactions 19 20
Green Park Hospitality Services Private Limited [Member]    
Due from/to related parties [Line Items]    
Amounts payable, related party transactions 0 17
Green Park Hotels and Resorts Limited [Member]    
Due from/to related parties [Line Items]    
Amounts payable, related party transactions 0 0 [1]
Stamlo Industries Limited [Member]    
Due from/to related parties [Line Items]    
Amounts payable, related party transactions ₨ 0 ₨ 0 [1]
[1] Rounded to the nearest million.