Some great Preparation tips shared below.

There are abundant books available in the market, However some top Books for indepth Preparation are shared below.

Physics:- 

Concepts of Physics Vol I and II by H.C. Verma

.New Pattern JEE Problems: Physics by DC Pandey.

Chmeistry:-

Organic Chemistry by O.P. Tandon

Numerical

Would be extremely happy to help :) 

The first thing you need to do is start as early as possible: the more the time you have in hand the better it is. Start preparing slowly with the basic topics from every subject and try to grasp the concept. You should

JEE Advanced maximum are not defined :

Maximum Marks vary every year like below:

2017- 366

2016- 372

2015 - 504

2014 - 360

So, it is difficult to predict marks as exam pattern and marks change every year but you should score more than 50% marks to get good

The amount of efforts and amount of dedication you out in shall correspond to results you achieve.

Some great Preparation tips shared below.

There are abundant books available in the market, However some top Books for indepth Preparation are shared below.

Physics:- 

Concepts of Physics Vol I and II by

There are lot of factors to be considered, so to predict the accuracy is difficult, the aprroximate generally varies between 225-235 for obc category under rank1800 as per previous year trends.

You should rather focus on achieving 275+ to be on safe side, such that you can score atleast 225+.

Spending 7 hours daily from now is msut, such that you need to devote time for sectional mock exams daily. With intense preparation and dedication you can surely go way higher.

Make sure you relax and chill as well, go accordingly to the time table and give more time for

the cutoff generally varies from college to college and is different for every specialization, below mentioned link shall specify opening and closing ranks for each IITs and NITs.

https://engineering.careers360.com/articles/jee-advanced-cutoff

However, the following factors shall determine the cutoffs.

1.Total number of applicants for JEE Advanced 2018

2.Total number of questions asked