u/Delicious-Hotel5257

i am 3rd semester engineering student CSE with specialisation in AIML. I want to prepare for gate exam from 4rth semster. i want a batch which is finished and have best teachers in PW i am not able to select any batch i have already brought khazana but there are so many bathes with batch a , b, c.... i am not able to understand which batch i should begin with there are also shresth and prakram name what is these all any seniour please explain me this and guide me which batch should i follow my college is tier 3 no hope for placement i want to start early. please help!!!!

i am pcm student from cbse what should i choose in last qualification and subjects in cucet form