141/142 is Coromandal
89/90 is Dhanbad Alappuzha (Used to run between Bokaro Steel City and Madras Central)
45/46 is East Coast (Used to run between Howrah and Guntur)
19/20 is Konark (Used to run between Bhubaneshwar and Secunderabad it was later mearged with Secunderabad Bombay Minar Express and Mumbai Bhubaneshwar Konark was formed)
9/10 is Shri Jagannath Express
7/8 is Howrah Puri Superfast
3/4 is Howrah Chennai Mail
79/80 is Puri Tirupati Express (Not the current 17479/80)
43/44 is Circar (Used to run only till Madras Beach)
No idea about 37/38 Howrah Madras Central Jan. Exp.
Synopsis:
Coromandal is massively slowed down by 2:40 hours from MAS to SHM unnecessary. Another injustice by shifting it to SHM.
Shri Jagganath, HWH PURI Superfast, Howrah Chennai Mail, PURI TPTY and Circar are massively speeded up.