I was previously using GD Rating plugin. Given that polldaddy also provides Rating posts along with polls, I removed the GD Rating plugin.
In the Ratings setup for polldaddy, I enabled rating for blog posts as well as in the front page for each blog post and I put the position as below.
I noticed that the star rating appears in very few posts only when in archive view, e.g. Category etc. and when we look at each individual blog post, the 5 star rating do not appear.
Thanks for resolving this issue for me.