Ya may be. But this tunnel route is going to connect with the up coming Nadikudi - Srikalahasthi route which is going to be wonderful for people of Kadapa dist.
they won't use hx-dhne-ndl route...like this we can have many routes...so only 3 routes which u mentioned in 4 is feasible, also 1st one is not possible until unless they lay connection to bza-gdr line...
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