"The sting operation by Tehelka aptly christened operation 'Kalank' (disgrace) has exposed Modi's deep involvement in the post-Godhra Gujarat riots. People now know the real faces involved in the crime against humanity," Prasad said.

"Since Modi enjoys the patronage of senior BJP leader L K Advani, the opposition leader in the Lok Sabha, the latter cannot escape culpability for the mass murder," he said.

Prasad demanded that criminal cases be instituted against the two leaders immediately and they be sent to jail.

The Railway minister said the incidents were a ‘blot’ on Indian democracy as also humanity and the then Prime Minister, Home Minister Advani and Home Ministry officials were ‘equally guilty’ along with Modi for the carnage.

Tehelka weekly on Thursday claimed it had ‘irrefutable’ evidence that the killings of Muslims post-Godhra train carnage in Gujarat was ‘not a spontaneous swell of anger but a genocide’ planned and executed by top functionaries of the Sangh Parivar and state authorities ‘with the sanction’ of Modi.