Hello Arnav

Here  are the links to the official websites of the mentioned colleges-

SPJIMR- http://www.spjimr.org/

MDI- https://www.mdi.ac.in/

Xavier University- https://www.ximb.edu.in/

FMS- http://www.fms.edu/

Department of Financial Studies, University of Delhi- http://mfc.edu/
Department of Economics, Delhi School of Economics University of Delhi- http://econdse.org/

Admission to Department of Financial Studies, University of Delhi to MBA (FM) and MBA (BE) is through CAT.
Online application to apply for the college has been started from october 10, 2018 and the last date is January 6, 2019.
Check the details- http://mfc.edu/wp-content/uploads/2018/10/ADMISSION-NOTIFICATION-2019.pdf

Good Luck!