Only three trains in India has a connection with toy trains (I.E hill trains)
Kalka Mail (now Netaji Express) has connected with Shivalik Express
Darjeeling Mail has connected with NJP - Darjeeling Passenger...
more...
Nilgiri Express has connected with Mettupalayam - Ooty Passenger
Let me know if there is more connections.
Nearly all trains arriving at KLK have connecting Shimla bound toy trains but all of them are not daily
11007 CSMT - PUNE Deccan Express connects to 52103 Neral - Matheran Passenger in one direction only( However, Neral - Matheran is suspended as of now).
14035/36 DEE - PTK Express has such timings that it connects to 04601/02 Pathankot - Jogindernagar Passenger in both directions at Pathankot.
Himalayan...
more... Queen(BG) connects to Himalayan Queen(NG) at Kalka.
Kakla shatabdi with Himalayan queen
Dauladhar Express Connection with Kangra Valley Passenger.
14095/96 DEE - KLK Himalayan Queen(BG) used to connect 52455/56 KLK - SML Himalayan Queen(NG) at Kalka in pre - covid times. Himalayan Queen(BG) is yet to be restored.
12011/12 NDLS - KLK Shatabdi Express( erstwhile Chandigarh Shatabdi) also connects to Himalayan Queen(NG) at KLK.