Thanks for your understanding. My logic is simple.
If a train terminating at MAQ is getting extended to Kerala, I will ask for extension of Maveli/ Malabar/ Parashuram/ Ernakulam to Bangalore/ Mysore. I will ask for extension of west coast to Murudeshwar.
If a train terminating at CBE is getting extended to Kerala, I will ask for extending Venad to Bangalore. I will ask for extension of Netravathi to Tirunelveli.
Exception...
more... I find is only with Amrita going to Madurai and PLNI MAS getting to PGT. Both have mutually spoiled their original run area requirements. All others are one sided only towards Kerala