online

Hello Isha,
Admissions to Loyola college, Chennai, begins from the time of announcement of result of HSC by concerned board in TN. Process is through online only. Nothing to be sent to college by post or courier. I am attaching a link that will give you all the required information.
http://www.loyolacollege.edu/admission/

For offline mode, 8 April is the last date.

Hi, Tezpur University conducts Tezpur University Entrance Examination TUEE for admission to various courses. The exam is generally conducted in the month of May, and classes begin in July. Admission based on online University Entrance Examination. https://www.shiksha.com/university/tezpur-university/exams/tuee/dates.

Hello,
ICT is one of the best institutions of its type in the country. Yes, you can apply online for PG. In fact method for applying for PG and above is online only. I am attaching a link that will give you all the required information.
http://www.ictmumbai.edu.in/DisplayPage.aspx?page=ge&ItemID=5

As a diet consultant, you must have knowledge in treating diabetes patients. If you are interested in doing diabetes course, there are many institutes offering an online course. To pursue the diabetes course, you must be a medical or healthcare graduate. You will have flexibility in learning and also you can improve your career path with diabetes course.
Click here to know about the diabetes course:
https://goo.gl/CeYAXg

Yes. Their cut off marks are same.