How to go from Ujjain to Rampura.

Never ever take a local bus because it takes 10 hours and the bus goes to small villages on it's way.

If you're in a private car, however, it'll take you four to five hours.

Always do a train + bus thing. The train departs from Ujjain in the morning, so don't miss it. Go to Bhawani mandir, Ratlam or Nimach (Neemuch). Take a bus from there to Rampura, it's cost effective and consumes less time.

Recommended train:
19329 Indore Jn - Udaipur Express
S M T W T F S
UJN Dep: 09:35 +20
RTM Arr: 11:50

Make sure you don't catch a train which will arrive at night, making getting appropriate road transport difficult. Like these:

12962 Avantika SF Express (PT)
S M T W T F S
UJN Dep: 17:55
RTM Arr: 19:30

19712 Bhopal - Jaipur Express (PT)
S M T W T F S
UJN Dep: 20:30 +26
RTM Arr: 22:20 +31