Why can't our people think of simpler alternatives? Why can't we have a railway station between Dodjala and Devanahalli? Anyway, rly line is on the border of BIAL area? From there, BMTC can run feeder service to airport (3-4 kms), just like in Delhi.
Instead of wasting crores of rupees for digging up the city and creating problems, this should be thought of.