I wanna say do not go to any coaching class directly. if you wanna join any coaching class then first ask a student which is already studying there if any of your relative or friend is not studying there then you can cheak its review on internet. then decide whether this institute matches your requirement or not.you should research before you go anywhere because if you go directly then they have marketing team which will convert your mindset to take admission in their institute or coaching. so always research before you go.