I visited GluTV(http://www.glutv.com) website and found many different Zee TV Shows.I enjoyed watching Kasamh Se, Banoo Mein Teri Dulhann, Saat Phere, Sabaash India, Jai Ganesha,Naagin ,Alladin,Ghar ki laxmi betiyaan and much more.
Navigation was smooth enough and its video quality is excellent ...without any buffering time and we can easily forward or rewind videos without waiting for a second.
It took only 2 minutes to register on that site.I entered my email address and password and I was able to see Zee Network channels for free.

I enjoyed watching B R Chopra 's new Ramayan show.
Also I found that it has got Zee News channel shows like Top Ten News, Bole To Bollywood, Miya biwi aur TV and much more.

I watched Zee Sports shows like Cricket Updates, Complete football matches,sports news etc.
There are also many other channels like Zee Gujarati, Zee Marathi, Zee Punjabi, Zee Kashmir, Zee Kannada, Zee Bangla,etc.

And all are free ..I just registered with email and password ....Its all good quality ..without buffering and authenticated