can I get a salary of 50000 per month in any corporate company as a fresher HR executive
Corporate companies are separate legal entity and also the salary depends upon the company which is hiring you and also depends upon the abilities you have.
As far as I know the HR executive fresher salary ranges 15,000 above and it may also range upto mid 20,000. And the annual income may be upto 3Lakh or mid 4 lakh.
You workhard may be there could be chances of you getting an higher amount after an year.