Yup you are in bad shape my friend!!! Your soniavihar.com domain has a VERY HIGH Penalty Penalty Level: tot. 10 points (0 min. - 10 max.)
As far as I'm aware you enter the command "site:www.yourdomain.com" (without the quotes) to see if you're in their index and according to google itself, search for your domain name and if it is not within the top few results you may have violated their terms and conditions. Good luck.
Site is still listed in Google that's good but you have some problems with your server. As far as I can see.
Check site backlink and site pages in google if your not get any result that means your site in sent box Backlink check : link:www.sitename.com site pages check site:www.sitename.com also your all pages PR 0 that means google Penalized you
Check it out: http://searchenginegenie.com Code (markup): Or try some advice above if you don't get satisfactory result.
How to search that my site is in sandbox or not.. That is not the proper solution , site: domain . com