Is there more scope for .net developers in India or in Canada/U.S.?? Can a fresher directly apply for a job abroad??

Mohak, you need to have a work permit for applying jobs to US/Canada. You may contact the agencied like Adecco, Kelly Services. These are recruitment firms who hire people for US/Canada even. You can check how to get a work permit by checking the immigration departments at Chanakya Puri too!!

Mohak Ashish gave the more details but as per my suggestion(since you are fresher) I would request you to first try getting job in India get some experience and then go for onsite apply. Getting work permit for Canada is easier then US and also canadian dollar is almost equivalent to US. So decide a