Although passing the NICMAR entrance exam is not very difficult, you’ll require to practice your verbal and aptitude skills more because of the intense competition for the major branches like ACM (Pune) and PEM.
For reading, you could start by investing 60 minutes of your daily time into a few articles and make sure that the articles are from diverse sources and topics so that you can develop a habit of reading without getting overwhelmed which could also improve your speed. Read over current circumstances as well because the GD round no longer exists so during the interview, they might ask you a haphazard question on a topical issue. Additionally, interviewers tend to ask straightforward technical questions. Plan beforehand. Always prepare your basics well.