Karachi, June 17 - Bollywood singers Alka Yagnik and Kumar Sanu visited the grave of Pakistani ghazal maestro Mehdi Hassan here to pay their respects.

Mehdi Hassan's death marked an end of an epoch in the subcontinent's music history, they said. No one will ever be able to fill the vacuum created by his demise, they told reporters here Saturday.

Alka said she had grown up listening to his ballads and was in love with his songs "Dono Jahan Teri Mohabbat Main Har Kay" and "Woh Ja Raha Hay Koi".

The India-born singer died of breathing complications at a private nursing home here June 13. His funeral took place Friday.

Hassan, who has a huge fan following around the world, had been suffering from lung, chest and urinary tract ailments for the past many years.

The singers had come to Pakistan to attend the last rites of the legendary singer but could not obtain a security clearance for the same, Geo News reported.