New Delhi, Aug 17 (ANI): Arvind Sharma on Sunday quit Congress to join BSP alleging that the Congress party in Haryana play politics of caste and turn a blind eye to the cause of the downtrodden. Meanwhile, BSP Chief Mayawati welcomed Sharma to the party and said that if the party gets a chance to form government in the state, Shama would be the chief minister candidate. Mayawati also alleged that there is dynasty politics in Haryana.