I would say among these two, you can sure shot go with IMT Nagpur. The college is good. It is ranked 35 by "THE WEEK 2019". It recieved many other ranks too by different national survey organization. It accepts XAT,CMAT for admission. Infrastructure ,faculty and crowd in the campus is rated above 4 and has healthy reviews about the campus environment. Placement is also good for the campus.
For more information you can visit the official webpage:- https://www.imtnagpur.ac.in/academic
Both of them are good but IMT Nagpur is better when compared to Weschool for PGDM Course. IMT Nagpur offers four courses, which include PGDM, PGDM (Finance), PGDM (Marketing) and FPM.
For details regarding IMT Nagpur go through below link. https://www.careers360.com/colleges/institute-of-management-technology-nagpur/amp
To get information regarding Weschool click below link.
Hope this helps you.
Best of Luck!!