So you want a paid app/book/music from Google Play Store? But looking for ways to get it for free? Well, you can get it for free if you earn enough google play credits. Earning play credits is damn too simple.
Step 1: Get the Google Opinion Reward App from play store.
Step 2: Now you don’t have to do anything, just wait for a new survey to pop up in the app. Once a survey pops up, answer simple questions (which will not take more than 20 seconds) and earn INR 10-20 for a survey. Withing a month time, you will have enough play credits to get any paid google play store apps.
This app is from google itself, so this is not a gimmick, nor do I encourage any illegal hacks that promises to get free version of paid apps, which is illegal.