Certificate

Yes, Aadhar Card is an authentic document and your address mentioned in it is your permanent address and it can be used as your address identify domicile proof.

Hi,
Admission to the UG courses is done on the basis of merit and performance in Essay writing followed by GD & Interview. Candidates must have passed 10+2 with minimum 60% marks. You can get in touch with the college official if they can take admission in the management quota. Regards.

Yes Latika,
You are definitely eligible for the dietician course. As you have already done your graduation from B.Com, now you can surely opt for any other course.

Yes, you are eligible to pursue this course. Candidate must have passed 10th standard from a recognized board. Interested candidates can apply directly to the college. For further details regarding this course please refer to the link provided below:
https://www.shiksha.com/engineering/course/certificate-in-field-surveying-amin-the-george-telegraph-training-institute-b-b-ganguly-street-kolkata-248764

That is totally depending on what do you plan to do further. If you plan to pursue any course further then it totally depends on the college if they consider degree or certificate.

You have to get it from your college, as without the same, you can not do anything further in higher studies.

Yes, you need to have show the income certificate at the time of counselling along with other documents.

You should look forward to IIFT (Delhi) and should appear for IIFT entrance exam.