What is the ratio of biology questions asked in neet are from ncert and particular of chemistry and physics also.

80-90% of questions are directly or indirectly from ncert..so you should be stay focused on ncert
Just don't do extra stuff just focus on ncert
In chemistry inorganic and organic 90-95% questions have a direct relation with ncert
In physics try to consolidate on concepts

It is quite difficult to tell as they dont share such information but NEET covers 70-80 percent syllabus from NCERTs so it is advisable to complete these books first because you can consider them all really helpful to make all the basics strong and clear. Also, once you are done with NCERTs you can follow other standard reference books as well names are given below - Biology Books for NEET Preparation - Biology Class 11 and 12 - NCERT Biology Vol 1 and 2 - Trueman Objective Biology - Dinesh Objective Biology - Pradeep Publications Biology (For theory and objective) - GRB Bathla Publication Physics Books for NEET Preparation - Physics Class 11 and 12 - NCERT Concepts of Physics - HC Verma Objective Physics - DC Pandey Chemistry Books for NEET Preparation - Chemistry Class 11 and 12 - NCERT Physical Chemistry - O.P. Tandon Objective Chemistry - Dinesh Publication Hope this helps!!!