How can I get around 150 to 180 score in jee mains as I m college student and I have only 4 months please guide me?

It is imperative to be very disciplined from the start if you have decided to prepare for IIT. All the 3 subjects i.e. Physics, Chemistry and Mathematics are equally important and you have to work sufficiently on each of them. When you are competent enough to solve the questions from all the three subjects, try to gain expertise on your strongest part/ favourite area. Strategy for Physics:Note down the formulae and results, it will help during revision.Practice as many questions as you can, keeping in mind the availability of time. Focus on your strong areas. Suggested Reference Books: H.C. Verma & Resnick Halliday Number of Questions Asked in JEE Main in Previous Years 1.Current Electricity-8 2.Electrostatics-4 3.Optics-3 4.Laws of Motion-2 5.Simple Harmonic Motion-2 6.Waves-2 7.Heat and Thermodynamics-2 Strategy for Chemistry:Chemistry is amongst the tough subjects as it involves cramming of formulae and reactions.Understand the conceptual base of the topics. Suggested Reference Books: Morrison & Boyd and O.P. Tandon Number of Questions Asked in JEE Main in Previous Years 1.Periodic Table and Representative Elements-3 2.Transition Element and Coordination Chemistry-3 3.Gaseous State-2 4.Atomic structure-2 5.Solution and Colligative Properties-2 6.General Organic Chemistry-2 7.Hydrocarbons-1 8.Amines-2 9.Carboxylic Acids and Derivatives-1 10.Carbohydrate, Amino Acids and Polymer-1 Strategy for Mathematics:Conceptual understanding should be preferred.Practice a lot in Mathematics JEE (Main)-2013, 32% questions were easy, 58% Medium level and 10% difficult. Suggested Reference Books: R.D. Sharma, Arihant, Hall Knight & S. L. Looney Number of Questions Asked in JEE Main in Previous Years 1.Coordinate Geometry-7 2.Limits, Continuity and Differentiability-3 3.Complex Numbers and Quadratic Equations-3 4.Integral Calculus-3 5.Sequences and Series-2 6.Trigonometry-2