Hi friends Could u plz tell me how should i begin my IIT preparations. In which order shud i statrt preparing my chpts. I am currently in 11th.

It is the right time. Start preparing from basics. I will advice follwing CBSE pattern. All the best.

 Since you have entered 11th, it is the right time. Join a good institute and in earlier days lay more stress on ncert. DEVELOP A HABIT OF SOLVING PROBLEMS AS IN REAL EXAM SITUATIONS. Lay more stress on conceptual problems than on long numerical problems, as these days jee does not ask frequently for long numerical problems. For maths, begin with equations and trigonometry. In physics mechanics should be mastered. For that, read and understand ncert and h c verma throughly, as these are the best books for building concepts. For chemistry, O.P.Tandon and ncert are the best books