Yes, there are coaching courses for two months which you can opt for. If you want to crack these exams make sure your concepts and fundamentals are clear. You can take help of NCERT books for that

You can also below strategies to crack these exams

1- Know the complete syllabus and focus on important topics.

Below are the important chapters you can focus on

Physics  Mechanics, Optics, Thermodynamics and Nuclear Physics

Chemistry  Mole Concept, General Organic Chemistry, Periodic Table, Chemical Bonding, Coordination Chemistry

Biology- Ecology and Environment, Genetics, Cell Biology; Morphology, Reproduction and Physiology of Plants and Animals; Basics of Biotechnology

2- You can solve complete mock test series to know your strength and weakness.

3- You can also refer previous year papers to know the exam pattern and level of questions.