How to reach Srinagar via Delhi or Chandigarh? (train preferable)

I am coming from Maharashtra as a part of an Educational Tour .

We have temporary selected Srinagar as one of the destinations .

However , when I try to look for train tickets .

Most trains end in Jammu Tawi (JAT) or Shri Mata Vaishno Devi Katra (SVDK)

Which is fine!

From there , I am not able to see any trains that reaches Srinagar (SINA) railway station ?

What to do ?

Are there buses available from Jammu Tawi or SVDK ?

Is the bus route easy going for people with motion sickness ? How frequent are the buses to Srinagar ?

The fact that there are no train connectivity to Srinagar even from stations in Jammu is being a deal breaker for the group.

Can anyone guide us ?