How can I add Indi wallet widget to my blog... Please help someone

If your blog is from Blogspot, then follow the steps given below for adding IndiWallet Widget. Get the IndiWallet code from IB.

Go to blogspot setting - > Layout -> Click “Add a Gadget” -> Select ‘Html / Javascript’ -> Type ‘title’ as you like or ‘IndiWallet’ or ‘Travel Booking’ etc. -> Paste the (IndiWallet) copied ‘code’ at ‘content’ box and save it. Again, click on ‘save arrangement’ at the top of the blog layout. That’s it. 

For Wordpress blog, try this one https://en.support.wordpress.com/widgets/