v3.25.1
Impairment losses (Details)
₨ / shares in Units, € in Millions, ₨ in Billions
12 Months Ended
Mar. 31, 2025
EUR (€)
Mar. 31, 2024
EUR (€)
Mar. 31, 2024
EUR (€)
₨ / shares
Mar. 31, 2023
EUR (€)
Mar. 31, 2023
EUR (€)
₨ / shares
Mar. 31, 2024
INR (₨)
Mar. 31, 2023
INR (₨)
Goodwill.              
Impairment losses              
Management plans period (in years) 5 years            
Indus Towers              
Impairment losses              
Impairment losses       € 64      
Impairment reversal   € 64          
Share price | ₨ / shares     ₨ 291.15   ₨ 143    
Recoverable amount   € 1,800 ₨ 1,800 900 ₨ 900 ₨ 165 ₨ 81
Cash-generating units within continuing operations              
Impairment losses              
Impairment losses € 0            
Germany, cash-generating unit [Member]              
Impairment losses              
Impairment losses 4,350            
Amount by which unit's recoverable amount exceeds its carrying amount       3,200 3,200    
Germany, cash-generating unit [Member] | Value in use [member]              
Impairment losses              
Carrying values of impairment reduced value in use estimates 30,900            
Romania Cash Generating Unit [Member]              
Impairment losses              
Impairment losses 165            
Romania Cash Generating Unit [Member] | Value in use [member]              
Impairment losses              
Carrying values of impairment reduced value in use estimates 600            
UK              
Impairment losses              
Amount by which unit's recoverable amount exceeds its carrying amount € 1,000     1,300 1,300    
Italy              
Impairment losses              
Amount by which unit's recoverable amount exceeds its carrying amount       200 200    
Spain              
Impairment losses              
Amount by which unit's recoverable amount exceeds its carrying amount       € 400 ₨ 400