Just curious to know and reading the replies to the above questions do we have to appear for any entrance exam or cn we just apply directly

Yes, you have to write any of the entrance exams like MAT , CMAT , CAT to get admission.

To be eligible to apply, it is mandatory to appear for mba entrance exams, which can be either of CAT, MAT, Cmat, XAT etc. But only 30% weightage is given to the entrance scores. Rest depends upon how u perform in your gd pi. All the best.