According to media reports, the alleged foul play came to light while the Thane police were investigating another complaint. The police said the couple bought 200 SIM cards in someone else's name and distributed them among quite a few people.
Shweta and Manav were not available for comment and STAR One too remained tight-lipped over the issue.
But their colleague Hiten Tejwani came to their defence and said: "It is not written anywhere that you can't vote for yourself. I don't know how far these allegations are true so I'm not in a position to say anything. But when I heard it, I was not shocked because votes are needed to win.
Hiten and his partner Gauri, who are also participants of the show, did not attach too much importance to winning.
"As far as we are concerned, we never thought we have to win - we were not good dancers so we are happy with the fact that we learnt dancing. We were comfortable with acting but had lots of inhibitions about dancing but slowly learnt it and we are happy."
However, this is not the first time that a reality show has been dogged by controversy.
Sony's "Indian Idol" was accused of tampering with the results. Some of the participants of "Nach Baliye" (part one) were also alleged to have misused the voting techniques.