SRK to do extended cameo in Yash starrer Toxic?

Shah Rukh Khan has been approached to play an extended cameo in Yash's upcoming gangster-based thriller 'Toxic'. The role is significant and requires a superstar's presence. SRK is expected to decide within the next two weeks. He also has Siddharth Anand's 'Tiger VS Pathaan' with Salman Khan.