The added image is self explanatory ... can you please suggest how to fix width of the dropdown bar ( or whatever name it is) ?

You have to either set a max-width for your select boxes

or a fixed width

Thank you for your reply ...
Where exactly I have to do the changes ? I am using Joomla! 3.3.0 and K2 v2.6.8.

Thank you Krikor ... you are my K2 GURU :) ... found it ... it's in components\com_k2\css\k2.css... it's working exactly as I wanted with your suggested code ... You can mark this post as SOLVED.

Thanks once again

Tarun

Here is the result

I would recommend that you put this snippet in your template's stylesheet.
If you do not override K2's css (no need for one rule) you will lose your changes once you 've updated the extension.

Thank you ... I will try that !