Hi aspirant,

You got 140.5 in NATA & 73 % in 10+2 board exams.

Now, see,

With >155 marks, you can get a descent government college.

With 130 to 155, you can get a good private college.

With 100 to 130, you can get a medium good private college.

Now, for Manipal, you should  be with around 110+ score.

For Rvca, cutoff marks is little bit high i. e. around 125+.

For Cept, minimum marks in nata required is around 155 -160 i. e. merit marks around 80+.

So, you have good chances for manipal & rvca but for Cept your chance is low.

All the best  !!

:)