"There is ample evidence of involvement of other people. All these facts will come out in the open," party leader Sachin Pilot told reporters.
However, asked about the involvement of Ramdev, he did not give a direct reply.
He suggested the party would speak on the matter after the Harish Rawat ministry has faced the confidence vote on March 28.
Ramdev has rubbished allegations of his role in the crisis in Uttarakhand as nine Congress MLAs rebelled, saying if he had to challenge the party, he would do so openly.