"Yes ... KBC back in August …and this time for a longer duration than last time …and yes welcome to all entrants …come join me…," Amitabh posted on micro-blogging site Twitter.

"Designer for KBC of my clothes, by Rohit 'Gudda' Bal ... dynamic and so good with colors … a kid in shorts in Srinagar, now celeb! (sic)," he added.

The 68-year-old actor shot for the first promo for the season with photographer Avinash Gowariker, brother of ace filmmaker Ashutosh Gowariker.

"Promo photo shoot by Avinash Gowariker ... brilliant as always…used a new lighting system... excellent ... and Rohit Bal on dress," added Big B.

The promo will be out soon in the market, according to the actor, who changed the face of Indian television when he hosted the first season of "Kaun Banega Crorepati" on Star Plus in 2000.

The show returned for its second season in 2005 with Amitabh, but superstar Shah Rukh Khan was roped in as the host of its third season on Star Plus.