Hello Visvanath - sorry I didn't see this earlier but thanks to the ever-vigilant Helen for pointing me in your direction. If you can PM me the site details I can take a look (in the morning as it's bedtime now)
Having a similar problem.
Hello Carol. Please can you send me a message on support @ moodle.org with your site URL and I will look into it.
Carol messaged me and her site registration was resolved - just so you know we care