Which of the following tournament celebrated its silver jubilee on April 6, 2016?
[A]Sultan Azlan Shah Cup
[B]Thomas & Uber Cup
[C]Hero Indian Open
[D]Santosh Trophy

Sultan Azlan Shah Cup
The Sultan Azlan Shah Cup is an annual international men’s field hockey tournament held in Malaysia. It began in 1983 as a biennial contest. The tournament became an annual event after 1998, following its growth and popularity.