JEE Main

Hi Abhishek,
Following is the admission criteria in IISER:
There are three channels of admission. Candidates will be admitted to IISER only through these channels. Kishore Vaigyanik Protsahan Yojana (KVPY) channel
Joint Entrance Examination of Indian Institutes of Technology (JEE) channel
State and Central Boards Channel (SCB) channel
These channels will be referred to as KVPY, JEE and SCB respectively
Indian nationals, and students belonging to PIO or OCI category are eligible to apply provided they satisfy the eligibility criteria described below. KVPY Channel
Candidates having a valid KVPY fellowship commencing from 2018-19 academic session are eligible to apply for admissions. Additional cut-off criteria may be applicable. JEE Channel
Candidates in General category securing a rank within 10000 in the Common Rank List (CRL) of JEE Advanced are eligible to apply. For candidates belonging to reserved category (OBCNC, SC, ST, PD), their category rank should be within 10000. SCB Channel
Students who have passed (10+2) level with Science stream with marks equal or above the cut off percentage in their respective boards are eligible to apply. For the candidates belonging to the Non-Creamy Layer of the Other Backward Classes (OBCNC) and Persons with Disability (PD) categories, there is a 5% relaxation. The cut-off percentage for the Scheduled Castes (SC), the Scheduled Tribes (ST) and Kashmir Migrants (KM) candidates is 55% in (10+2) level for all boards. Students applying through SCB channel will have to appear in the IISER Aptitude Test which will be conducted at various centers across the country. To calculate your percentage of marks obtained, use the percentage calculation method adopted by your board. Good luck.

Study material play an important role to achieve a good score in JEE Mains Exam. Always prefer the best reference books for preparation which covers the complete syllabus and also have sample papers. From 2019, NTA has decided to conduct JEE Mains exams twice a year. So it is great opportunity to get qualified in the Mains exam. You will get the complete details related to exam from - https://www.eduncle.com/jee-main-exam must check. Here are some books which are crucial for you in your preparation. Physics -
Concepts of Physics Volume I and II - H. C. Verma
Fundamentals of Physics - Halliday, Resnick & Walker
Problems in General Physics - I. E. Irodov
A Collection of Questions & Problems in Physics - L. A. Sena
Physics Volume 1 & 2 - Tipler
Chemistry -
Organic Chemistry - Morrison Boyd, O. P. Tandon
Inorganic Chemistry - O. P. Tandon
Modern Approach to chemical calculation - R. C. Mukherjee
Numerical Chemistry - P. Bahadur
Concise Inorganic Chemistry - J. D. Lee
Maths -
Mathematics for Class 11 & Class 12 - R. D. Sharma
Maths for Class 11 & Class 12 - R. S. Agarwal
IIT Mathematics - M. L. Khanna
Problems in Calculus of One Variable - I. A. Maron.