Sheila Dikshit, seeking a record fourth term as Delhi Chief Minister, appears to be facing the toughest battle in the national capital with the emergence of Arvind Kejriwal's Aam Aadmi Party upsetting the calculations of both the Congress and the BJP.
Harshvardhan is BJP's Chief Ministerial candidate.
There are 810 candidates in fray in Delhi for 70 seats. While Congress and AAP are contesting all the seats, BJP is in the fray in 66 seats. It has given four seats to ally SAD.
(With PTI inputs)