why study material not enough

The materials provided by the Institute is not enough beacause

(1) It contains only few examples of problems so, and a student needs lot of examples for practice and to get expert level knowledge.

(2) The presentation of materials provided by institute is not attractive so, no one likes to study the same.

(3) And also the way of explaining examples are not really student friendly in materials.

So, beacause of above and few other reasons it can be said that materials are useful and must be read but it is not enough for getting expert level knowledge.

study material for ipcc is enough and for more questions & their answers refer suggested answers issued by icai. also refer super scanner