SMEAT

Yes you can get, if falls under the merit list. The SASTRA have two admission streams known as Stream-1& 2. Stream-1 is based on JEE Main score + 12th marks and 70% of seats will be filled under this stream-1.
Stream-2 is another entrance method which is purely based on 12th marks. The minimum required aggregate percentage for stream-2 is 60% for PCM. Here 100% weightage are given to 12th marks.
So you can apply here through Stream-2.

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https://www.shiksha.com/college-predictor

Hello, You check your probability here to getting admission into your desired college
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All the best.

That would depend on the college. The college may choose to opt for either of the exams as requirement for admission. They could even go for central management exams such as MAT CAT or CMAT.

if 65 % in 12th yess, but then which college are u asking for

You need to apply for scholarship with evident proofs of income or other disabilities after which there may be a fee waiver applied.

There are paid seats but first apply to a college with your marks and see their requirements. You will definitely get admission in agriculture.

Hi,
Please visit this link for more information:
https://www.shiksha.com/college-predictor

You can check it by clicking following link :--
https://www.shiksha.com/college-predictor