It depends on number of factors like your country, your education, your marital status & others. You can receive minimum 20-50 surveys in a month, if you join all the 20 sites from the link provided above.
How Much Money I can Earn from Online Surveys?
You can earn Rs.10,000 to Rs.20,000 which depends on your profile, how many survey sites you join & how many surveys you complete every month.
You can also check this list of best PTC sites where you can earn additional Rs.5000-10,000 per month by just viewing the ads.
If you are looking for more better ways to earn money online then you can go back & check the list of online jobs to find more better option.
How do I Receive My Earning?
Most of the companies send your income in your PayPal account. PayPal.com is free to join where you can add your bank account & receive money from PayPal to any of your bank account in India.
You can see above link of PTC sites where we have provided details on PayPal.