The excitement has been building up around the seventh season of spicy celebrity reality show "Bigg Boss", but the official line-up of participants will be unveiled only Sep 15, when the show goes on air.

Superstar Salman Khan is once again the host of the Colors show.

"Bigg Boss 7" will be showcased in the primetime slot of 9 p.m. to 10 p.m. as two of the channel's shows - "Sanskaar - Dharohar Apnon Ki" and "Na Bole Tum Na Maine Kuch Kaha - Season 2" will make way for it.

"Both the shows have fared well and were popular amongst the audiences. However, we will be having a logical conclusion to both the shows paving way for fresh content," Prashant Bhatt, Colors, Weekday Programming Head, said in a statement.

The promo of the reality TV show features Salman in a double role as an angel and devil, and duly reflects the theme of 'Heaven and Hell' for this season. 'Wow of Heaven and Aao of hell' is how Salman describes "Bigg Boss 7".

"Bigg Boss" is the Indian version of the internationally popular "Big Brother" franchise. It features some handpicked celebrities who live together inside a secluded house, with limited means, and under 24X7 camera surveillance.