v3.26.1
Share-based payments (Details Textual)
 1 Months Ended 12 Months Ended
Sep. 26, 2025
Jan. 20, 2015
Mar. 31, 2026
shares
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2016
Jul. 31, 2014
shares
Disclosure of terms and conditions of share-based payment arrangement [line items]                            
Number of share options granted in share-based payment arrangement     0 8,630,671 0                  
Number of share options exercisable in share-based payment arrangement     390,000 1,043,802 5,183,587                  
Associate Stock Option Plan 2014 [Member]                            
Disclosure of terms and conditions of share-based payment arrangement [line items]                            
Number of shares reserved for issue under options and contracts for sale of shares                           25,000,000
Number of share options granted in share-based payment arrangement   5,870,800       25,000 195,000 465,000 7,220,000 335,000 150,000 525,000 184,300  
Options Plan One [Member]                            
Disclosure of terms and conditions of share-based payment arrangement [line items]                            
Number of share options granted in share-based payment arrangement     4,304,600                      
Description of vesting requirements for share-based payment arrangement     3/5th of the options vest at the end of one year from the date of grant. The remaining 2/5th vests at the end of every half year during second and third years from the date of grant in four equal instalments                      
Options Plan Two [Member]                            
Disclosure of terms and conditions of share-based payment arrangement [line items]                            
Number of share options granted in share-based payment arrangement     6,612,700                      
Description of vesting requirements for share-based payment arrangement     2/5th of the options vest at the end of one year from the date of grant. The remaining 3/5th vests at the end of every half year during second, third and fourth years in six equal instalments                      
Options Plan Three [Member]                            
Disclosure of terms and conditions of share-based payment arrangement [line items]                            
Number of share options granted in share-based payment arrangement     4,052,800                      
Description of vesting requirements for share-based payment arrangement     2/5th of the options vest at the end of two years from the date of grant. The remaining 3/5th vests at the end of every half year during third, fourth and fifth years in six equal instalments.                      
Optional Plan [Member]                            
Disclosure of terms and conditions of share-based payment arrangement [line items]                            
Number of share options exercisable in share-based payment arrangement     65,000                      
Restated number of outstanding share option     78,788                      
SISL Employee Stock Option Plan 2025 [Member]                            
Disclosure of terms and conditions of share-based payment arrangement [line items]                            
Number of share options granted in share-based payment arrangement 30,000,000   18,790,000 0                    
Description of vesting requirements for share-based payment arrangement The options vest subject to continued employment and achievement of specified performance conditions, with 40% vesting after two years from the grant date and the remaining 60% vesting over the subsequent three years in equal half-yearly tranches.   2/5th of the options vests at the end of two years from the date of grant.The remaining 3/5th of the options vests equally every six months over the next 3 years.                      
Number of share options exercisable in share-based payment arrangement     0 0