Condemning Ramdev's controversial remarks targeting Rahul Gandhi on his visit to Dalit houses, BSP supremo Mayawati on Saturday threatened to launch a country-wide stir against the yoga guru and the BJP after the polls, if the saffron party did not take action against him.BJP should take immediate action against him (Ramdev), "otherwise after Lok Sabha elections, BSP would launch a country-wide agitation against this baba, besides BJP and SP," she said.