Palamu (Jharkhand) [India], May 12 (ANI): Jharkhand’s Palamu is all set to witness a poll battle on May 13 between sitting MP Vishnu Dayal Ram, a BJP candidate and Rashtriya Janata Dal’s (RJD) Mamta Bhuiyan. RJD has fielded Mamta Bhuiyan as a INDIA bloc candidate. The BJP has emerged as a dominant party with landmark victories in the past two elections. Vishnu Dayal Ram, a former Director General of Police, had won the Palamu seat – the only scheduled caste reserved constituency in the state. He was a 1973 batch IPS officer and had served as DGP of Jharkhand Police twice from July 1, 2005 to S…