Question

how to solve difficult rigid body rotation problems of IIT level

Answer 1

solve hc verma concepts of physics (worked examples) on your own and then do the exercises ..then go to halliday resnick if you want

Answer 2

yup hc verma is the key but before that you need to get your concepts right. so do start with basics and then go on to hc verma when you are done. try ie irodov.
it's gonna take about 1 month to complete rotation after 1 month when u look back. you can solve any kind of question

Answer 3

halliday will have good questions