Hi there komal, yes absolutely you can reapply, make sure you chose the correct course and it has to be correlating with your current education for example like science student must have science related course in Canada. Another thing make a strong SOP about your background your current education your academic and lastly mention a strong reason why would you like to come back India, say for example in india there is a wide opportunity of job related to my course and there's a need of this type of employment. Another thing if you are non sds then make sure you show good finances. Reapply and make sure the course you chose, the whole application depends upon your course you choose. Reply this thread if you need any more information thay I didn't mentioned. Good luck.