Hyderabad - YES
Bangalore - Surely yes - they already have 3 x
Kochi - forget it! The only way Kochi will be viable is to have extension of one of the Middle East flights to Kochi with fifth freedom- Else not enough traffic. Plus evryone from QR to EK to UL not to forget AI flies from there and you have Silk Air flying non stop to Singapore which takes away all the US /Canada west coast traffic.
Additinal flights to DEL- I guess MUC can work as well if it provides a connection to the US/Europe flights. When AZ switched the BOM FCO flights to MXP there was no drop in loads because of the same reason - most of the load is not Origin Destination traffic (although there will be more of it for MUC).
This is what me thinks!
Cheers