Bharti, who takes pride in her huge belly, had also posed such a challenge to Katrina Kaif on reality show "Jhalak Dikhhla Jaa 5", and now she decided to do the same to Rani during the shoot of "Comedy Circus Ke Ajoobe".
Bharti challenged Rani to a belly dancing competition, and the actress gladly accepted the challenge. Both of them shook their belly to the song "Aga bai" from Rani's film, and it was a sight to behold, said a source from the set.
Rani has also performed a Lavani number in the movie, which releases Oct 12.