Can I get admission in PGDM without writing any entrance exam?

No reputed B-school in India offers admission without accepting the scores of particular entrance exams(CAT, XAT, CMAT, etc) and the subsequent interview rounds for its PGDM programs. So you have to appear for the different exams as per the college's requirement, clear the required cutoffs and clear

No, if you want to take admission in good colleges then you must have to give entrance exams like CAT, CMAT, MAT, etc. So that you get a good score to get eligible for good colleges.