the website is live since 2003. I don't think there is any sandbox effect...
Please type in
bangalore interior design site:www.designspot.in
in google bar.You will come to know in which pages your targeted term is appearing the Title + body of the web pages.
I recommend TITLE should be
bangalore interior designers, architectural and Landscape Designer
and DESCRIPTION should be
bangalore interior designers, architectural and Landscape Designer company at Bangalore, India, delivers creative commercial and residential design solutions to clients.
There are certain issues with your website...
1. Back links :designspot.in ::
Google : 340
Yahoo : 23
MSN : 55
If you analyze the site saturation then you will find that most of the webpages are indexed as similar pages on GOOGLE
2. Your website is not yet indexed in DMOZ
3. From the last 3 months, there is almost no change in your traffic, reach per million and page views.
You need to refresh content of the website.
4. search box is not much visible
6. There is no meta, anchor, image, code, content and anchor optimization of your website.
7. Trust factor is somehow 70% OK
IF FIND MY ISSUES RELEVANT THEN I CAN SUGGEST YOU SOME WAYS.....