Hyderabad: Bollywood stars Amitabh Bachchan and Aamir Khan will most likely attend megastar Chiranjeevi\'s 60th birthday on Saturday.

Big B and Aamir are expected to attend a lavish party that Ram Charan will be hosting for his father here on Saturday in a plush hotel.

\"Invitations have been sent to Amitabh ji and Aamir ji. Both of them have confirmed to attend the event at all cost,\" a source close to Ram Charan told IANS.

\"Charan is very close to the Bachchan family and when he extended a personal invitation, Bachchan ji immediately agreed to be a part of the event,\" the source said.

While fans of Chiranjeevi have already begun celebrations in the city, his family and close friends are looking forward to the event on Saturday evening.

\"Telugu stars such as Venkatesh, Nagarjuna and Jagapathi Babu are also expected to attend it. Chiranjeevi\'s brother Pawan Kalyan, who is busy shooting for \'Sardaar Gabbar Singh\', will also be present,\" the source added.

Meanwhile, the source also confirmed that Chiranjeevi will be essaying a cameo in his son\'s yet-untitled Telugu film with director Srinu Vaitla.

\"Chiranjeevi sir is playing a brief role. He will soon join the sets and shoot his part,\" the source said.

Big B, Aamir Khan likely to attend Chiranjeevi\'s b\'day bash