Hi Shilpa.

The MDS admission is done through neet pg exam. The cutoff for the same differs each year and it depends upon various factors like the difficulty of the paper,the specialisation,the category and so on. However I can give you the last AIQ rank details for this specialisation in some Colleges of Karnataka:

Yenepoya dental college - conservative dentistry and endodontics - 11538

AMSMIDS Bangalore - endo - 2718

Hope this helps.

Good luck!!