Hi, Generally CLAT material is useful for all law preparation purpose.  Specially for 5 year law courses.
To clear law exams you will have to focus on Legal section because this is the main subject of all law entrances.
You basically need to learn and practice as much as you can till the end. Also your dedication and proper time management shall help you with the successful completion of  your task.
Some of the books you can refer to study for law exams are:

• English- Word Power Made Easy
• Maths- Quantitative Aptitude by any author (Preferably RS)
• Logical Reasoning- Analytical Reasoning by MK Pandey
• GK- Monthly supplement of GKToday and Lucent General Knowledge
• Legal Reasoning- Legal Aptitude for CLAT by AP Bhardwaj
• Focus on reading newspaper daily.

Good Luck.