How to get free rs 400 flipkart voucher from opinion bureau
1) Firstly sign up https://www.opinionbureau.com/Registrati...rm REMOVED WITH WARNING and get bonus of INR 25
2) While Creating account when they ask City write Gurgaon and write any pin code of south area of gurgaon And in occupation write IT or Engineer and accept the bonus of 100INR
3) Complete your profile survey and you will get 25INR more.
4) Then there are 3 survey mention below on site. One by one complete all three survey and now you have INR 400
5) Redeem that INR for flipkart 400 rupees voucher