Hello Abhinay,

As you have decided to drop for an year and give your NEET UG 2nd attempt. Better to start prepration from right now, you'll be getting enough time for preparation for NEET UG entrance exam if you start now.

You can take online or offline coaching or can study by yourself. You can study for around 5 yo 7 hours in a day depending on your comfort and convenience.

Preparation Tips for NEET UG entrance exam:

-First make a note of NEET UG syllabus and get idea of it.

-Prepare your own short notes.

-Make flow chart of the concepts to remember them easily.

-First prepare the topics you feel easy, to boost up your confidence.

-After than go for tough subjects prepration.

-After completion of the syllabus preparation then solve previous year's papers.

-See the type of questions asked in previous years and prepare accordingly.

-Then go for sample papers solving.

-Then take sample or practice tests.

-Finally revise all the syllabus.

Best Books for preparation of NEET UG exam are listed below.

Physics:

>>NCERT Physics Class XI Textbook

>>NCERT Physics Class XII Textbook

>>Concepts of Physics by H.C. Verma

Chemistry:

>>NCERT Chemistry textbooks for Class XI and XII

>>ABC of Chemistry for Classes 11 and 12 by Modern

>>Physical Chemistry by OP Tandon

Biology:

>>NCERT Biology Class XI and Class XII textbooks

>>Objective Biology by Dinesh

>>Biology Vol 1 and Vol 2 by Trueman

To get more information go through below mentioned link.

https://medicine.careers360.com/articles/best-books-for-neet

For more information about NEET Syllabus go through below mentioned link.

https://medicine.careers360.com/articles/neet-syllabus

You can check below mentioned link to get more information about NEET Knockout.

https://learn.careers360.com/knockout-neet-may/

May this information was helpful to you.

Best of Luck!!