1. Survey was conducted along the track and it was seen that several residential and multi-storied buildings have to be demolished in addition to acquisition of land for construction of additional two lines.
2. Feasibility of taking up only 3rd line, which does not involve significant land acquisition is being examined. As per feasibility, Quadrupling has been proposed between Bangalore Cantt. to Whitefield in place of Bangalolre to Whitefield.