Tambaram(Chennai)=Lingampalli(Hyderabad):
Some of the similarities i observed:
1.Becoming a new terminals
2.2 trains are extended
For tambaram:a.Dibrugarh exp
b.Guwahati...
more... exp
For Lingampalli:a.Gautami exp
b.cocanada exp
3.both got one humsafar exp
a.Tambaram-Jodhpur HS
b.Lingampalli-Indore HS