The following are the affordable Colleges for MBA:

Faculty of Management Studies Delhi
NITIE Mumbai
JBIMS Mumbai
DMS IIT DELHI
DMS IIT KANPUR
DMS IIT Roorkee
DMS IIT Madras
VGSOM IIT Kharagpur
SJMSOM IIT Bombay
University Business School (UBS), Panjab University, Institute of Rural Management (IRMA)
Indian Institute of Forest Management (IIFM)
Institute of Management Studies Banaras Hindu University
K. J. Somaiya Institute of Management Studies and Research
Delhi School of Economics, Delhi School of Management etc

Most of these colleges consider CAT score for interview shortlisting. After that they conduct Group discussions, Writing Ability Test and Personal Interview round for final selections.