Ghaziabad, April 11 -- The Ghaziabad parliamentary constituency is witnessing a triangular fight and the outcome of the polls will heavily depend on caste equations. The three main contenders- VK?Singh of Bharatiya Janata Party (BJP), Suresh Bansal of the Samajwadi Party (SP) -?Bahujan Samaj Party (BSP) - and Rashtriya Lok Dal (RLD) alliance and Dolly Sharma of the Congress are internally banking on getting their caste equations right....