Hello Manish!

To master the syllabus of I.A.F Airman exam(X and Y) you have to go through the NCERT books of your 11th and 12th properly. For the airmen x group test, the subjects included in the syllabus are English, Physics and Mathematics. The english section will be basic with passage comprehension, grammar including verb activities and different degrees. There will be vocabulary, narration, active and passive voice and jumbled sentences categories.

You must should assign time for every part and learn these sections everyday. Reading English Newspapers, magazines, novels and storybooks help you to progress in your communication skills. You should remember many terminologies and difficult words. Therefore, you can watch some English movies that help you to increase your proficiency in English. You can watch TV news or online news to know about current affairs in the world. You must exercise every mathematical problem. For that, you can learn the important points and formulas. For attending the exam, Time management is an important thing. Practicing sample and last year question papers will be very helpful for preparation.

Hope this helps:)