How to improve my concentration?

the main thing

is to keep the main thing

 main thing !!!

jus focus on ur studies tats it 

Bawa time table and adherence to it..
punish urself if u could not follow the time table.. i do it
study while walking... u will not go in the dormition state.

aur fir bhi kuch nahi hua to BABA RAMDEV SE MILO (just kidding)
sleep whenever u want to sleep but study all the time when u dnt sleep