I think Ratlam jn.
There no direct trains connectivity from Ratlam to Chennai Bikaner RaipurDurg Nagpur Jodhpur Coimbatore
Distance from Ratlam to Nagpur,Jodhpur, Bikaner within 700 km
In sabhi stationo ki Nagda Vadodara- Ujjain kota se direct trains Coñnectivity available hai