Book 2 tickets in advance.
1. RJT-Umb, 2. Klk-Sml
Take Sarvodya/Sindhu Exp from Rajkot to Umb.
Alight at Umb and take Himalayan Queen 14095 from there to Klk.
No need to book ticket for...
more... it, daily ICE (Inter City Express) type of train gets half-empty after Umb. A gen ticket will also do for 1 hr journey to KLK.
Now after alighting at Klk a NG (narrow Gauge) train also known as Himalayan Queen will be waiting for you for the onward journey of Simla for which the tickets you have already booked.
Summary
RJT to Umb -
Sarvodya or
SindhuUmb-Klk -
Himalayan QueenKlk-Sml -
Himalayan QueenHope it helps you.
happy Journey.
PS: Remember KLK-Sml Himalayan Queen is a link to the Dee-KLK Himalayan Queen, so the NG Himalayan Queen will not depart from Klk until n unless 14095 Himalayan Queen will not reach KLK. So even if its gets late, the connectiing HQ will also start with delay.