Pic 1
7/8 is Godavari Express
19/20 is Konark Express (Secunderabad Bhubaneshwar Konark Express and Bombay Secunderabad Minar Express were mereged together to form the current Konark Express)
5/45 6/46 is East Coast Express ( Secunderabad - Waltair[Visakhapatnam] Krishna East Coast Express and Howrah - Guntur East Coast Express were mereged together to form the current East Coast Express)
Pic 2
1/2 is Golconda Express (Terminal was Hyderabad then)
5/6 is Krishna Express (Used to run between Secunderabad and Guntur)
25/26 is Kakatiya Express (Used to run till Warangal only)
Synopsis:
Golconda Express has been massively slowed down.
Pic 3
551/552 is Ajanta Express Express (Terminal was Kacheguda then)
69/70 is Hyderabad - Jaipur Superfast Express (Used to run between Kacheguda and Ajmer)
No idea about
95/96 is Nizamabad - Manmad Ellora Express
Synopsis:
Hyderabad - Jaipur Superfast Express was a biweekly train then and today also its still a biweekly train.