Dear Achin,
I will definetly try to get the list of books and his method of preparation last year from my son and then post the same here but he was regular in his NIT classes and not wasted much time in other college activities. In fact his basic concepts were already clear during his earlier two years regular coaching for JEE07 and he mainly concentrated on revising the whole syllabus joined Fiitjee test series and also his local coaching institute Director helped him a lot by asking him to appear for their tests as per his timing without clashing with his college timings and clearing his doubts at any odd hours and this all she did without charging anything but to see that a student gets the proper institute as per his capability. We owe a lot to her. Also please try to do Chemistry much better as it being mostly theoritical it becomes difficult to remember while studying in college. My son was expecting around 285(Phy:135, Maths: 105 and Chemistry only 45). Had he done better in Chemistry, he would have got much better.