Patna
Dehradun
Kolkata
Agra
Designing
Testing
Repairing
All the above
Godavari
Narmada
Tapti
Shipra
Ashoka
Chandragupta-II
Kanishka
Harsha
exhaust will be smoky
piston rings would stick into piston grooves
scavenging occurs
engine starts overheating