Hello Amitabh,

There is no boundation of 140 marks in NATA, but yes you need 40% marks in NATA exam to clear NATA which is 80 marks in 200. 80 marks is the minimum marks to clear NATA.

The elegibility is calculated with boards marks as well as NATA score.

Marks out of 200 is calculated within 50 i.e. 25% and boards marks to 50% which is half and total score is calculated out of 100.

Which is the final NATA score and would be used in the admission process.

Best of luck with admissions.