Udaipur, Sept 07: BJP today said it had nothing to do with the Mulayam Singh Yadav government in Uttar Pradesh where politics of splits and mergers was on. "We have nothing to do with the Mulayam Singh Yadav government," Party president m Venkaiah Naidu told reporters. Politics of "splits and mergers" was going on in the state and "we have asked out partymen to refrain from playing Dalit or Muslim cards," he said in apparent reference to the BSP and Samajwadi Party. Naidu said his party which has decided to vote against Yadav government when it seeks a confidence vote in the assembly tomorrow, would play the role of a constructive Opposition. Bureau Report