Dear harsha agarwal,

Nothing is difficult after you understand and practice so it depends on your studying style how you study and understand so the Applicants who have skills and abilities such as interpreting and analyzing the resultant information, overseeing and finding patterns as well as drawing conclusions; conducting and designing observational as well as experimental studies and the decent knowledge of computer applications to help the subjects. If you have skills and ability if you are persistent and hardworking then it will not going to be difficult for you.

Hope this helps you!

Warm regards!