Mumbai, May 21 (IANS): Megastar Amitabh Bachchan is nervous about singing for the forthcoming thriller film "TE3N", in which he plays a grandfather.

The 73-year-old, who has sung in films like "Wazir" and "Shamitabh", took to Twitter on Saturday to share the news with his fans.

“Three weeks to 'TE3N'. So listen to the song ('Haq Hai') out now. But singing one tomorrow for the film. Nervous,” Amitabh tweeted.

Set in Kolkata, "TE3N" is an emotionally explosive journey of three people who find their fates intertwined in their quest for justice and redemption.

Amitabh will be seen as John Biswas, a grandfather in relentless pursuit of justice for eight years.

Actor Nawazuddin Siddiqui will play Father Martin Das, whose life gets changed forever by the same crime that claimed the life of John's granddaughter.

Actress Vidya Balan essays the role of a police officer named Sarita Sarkar, who swings into action when an identical crime happens eight years later.

Produced by "Kahaani" director Sujoy Ghosh, “TE3N” is set to release on June 10.