Bachchan, 72, said his campaign for the new channel was "pro bono" and happened many days ago.
"I wish to state that I have not entered into any contract with Doordarshan, on the endorsement of their Channel DD Kisan, and neither have I received any money from them. I worked with the advertising agency Lowe Lintas on the campaign for DD Kisan, and have not entered into any contract with them either, nor have I received any money from Lintas, as being stated," he said in a statement.
There were reports that Bachchan was roped in for Rs 6.31 crore in the most expensive endorsement deal ever by an actor.