Agra, May 6 -- Political campaigning in the Yadav land of Mainpuri is unfolding itself in a rather unusual manner. While the Samajwadi Party (SP) is defending itself as the ruling party against anti-incumbency there, the Bharatiya Janata Party (BJP), which is in power in the state as well as the Centre, has adopted an offensive stance, more reminiscent of an opposition party....