v3.26.1
Segment reporting (Details Textual)
₨ in Millions, $ in Millions
12 Months Ended
Mar. 31, 2026
INR (₨)
SEGMENT
CENTER
Mar. 31, 2026
USD ($)
SEGMENT
CENTER
Mar. 31, 2025
INR (₨)
Mar. 31, 2024
INR (₨)
Disclosure of operating segments [line items]        
Revenue ₨ 44,877 $ 474 ₨ 39,886 ₨ 35,634
Number of maintainable data centers 14 14    
Number of geographic segments | SEGMENT 2 2    
Mumbai (Bombay) [Member]        
Disclosure of operating segments [line items]        
Number of maintainable data centers 7 7    
Noida (Delhi) [Member]        
Disclosure of operating segments [line items]        
Number of maintainable data centers 2 2    
Chennai (Madras) [Member]        
Disclosure of operating segments [line items]        
Number of maintainable data centers 2 2    
Bengaluru [Member]        
Disclosure of operating segments [line items]        
Number of maintainable data centers 1 1    
Kolkata [Member]        
Disclosure of operating segments [line items]        
Number of maintainable data centers 1 1    
Hyderabad [Member]        
Disclosure of operating segments [line items]        
Number of maintainable data centers 1 1    
One Customer of data center and network services [Member]        
Disclosure of operating segments [line items]        
Revenue | ₨ ₨ 8,809      
More Than [Member]        
Disclosure of operating segments [line items]        
Percentage of entity's revenue 20.00% 20.00%