Yeoman bootstrap styling not coming for angular generator

Yeoman - AngularJS Generator Bootstrap Styling Issue

I have created an angular project using yeoman angular generator with bootstrap. After generating the scaffold app, I observed that bootstrap was not added successfully even though i have selected to add bootstrap during the generation of scaffolding. The issue has been solved by manually adding the bootstrap in bower.json or installing bootstrap manually.

bower install --save bootstrap#3.3.4
grunt serve

Reference:
http://stackoverflow.com/questions/30946498/yeoman-and-bower-not-adding-bootstrap-css-angular-generator