Since last one week, my site's (adanipharma (.) com) some keywords are going down upto 60 to 70 position. Do you face this problem? Does anyone have any idea? What to do to get rank back?
Your site isn't responsive. The keywords aren't very consistent and there are several structural errors in the code. There isn't a ton of content either. The latest algorithm I know of is Hummingbird. The updates happen all the time though. If you're having results like this, it can be from a bazillion things. I would guess competition rank improvements are happening and possibly parts of your site are being 're-indexed and different results are showing because of it
How often do you change your site? Do you have a sitemap that sets <changefreq>? If so is it set to daily and you only update your content monthly? Many factors can cause this.
There was a pretty decent sized update January 8th 2016? somewhere in there anyways... I saw more changes a few days later than I did in the beginning. This has been labeled a "Core Algorithm Update" What is sort of interesting with this, is that this is one of the few of these that Google has actually confirmed as such. I saw more upticks than anything,so I really cant give you any ideas as to what your site may have been effected by.