KGP-ADRA-GMO is the smallest and fastest but low revenue route here.
KGP-TATA-MURI-BKSC-GMO is the longest, slowest and a better revenue generating route. It's the most scenic one.
KGP-TATA-PRR-BKSC-GMO is the longer, faster and highest revenue generating one among the three. It is also scenic to an extent.
Now judge!