Hi,Ashish 

You can Visit or Contact 
http://admissions2018.thapar.edu/courses.php#undergt 

CONTACT US

ADMISSIONS HELPLINE FOR ALL PROGRAMS EXCEPT MBA

E-mail : admissions@thapar.edu

Phone: +91-6239397843, +91-6239398225, +91-8288008120, +91-8288008121, +91-1752393324

CONTACT DETAILS FOR TECHNICAL SUPPORT ON ONLINE APPLICATION FORM

E-mail : technical_support@thapar.edu

Phone: +91-9599775355 (11 AM to 5 PM, Monday to Friday)

JEE Main is the National level Entrance Exam for the admission to B.E/ B.tech programme, In order to get admission in IITs, NITs, IIITs, GFTIs you should have minimum 75% in class 12th as a General category & 65% as a reserved category Or you should be in top 20 percentile in your class 12th board conducted by the respective board.

You can check the further eligibility of the exam with the given below link.

https://engineering.careers360.com/articles/jee-main-eligibility-criteria

You can apply the April Session JEE Main Entrance Exam, The application form is expected to come out from 8th February, 2019.

The other Exams you can apply of your state level or University level exams also.

Good Luck!