Delhi Deputy Chief Minister Manish Sisodia, who is being probed by the CBI in connection with the liquor policy, said he received a message from BJP which said the CBI and ED cases against him will be closed if he joins the BJP and leaves AAP. But, he didn't revealed the name of the leader. How will the political strategy beat BJP? Know analysis on this by Sudhir Chaudhary in Aajtak's show Black and White.