Tagore settings is back on top of Google! Apparently, a few days ago Google has indexed the index page for my blog, which was published on 30 September. The rest of the pages still has to be indexed, but, as they are new, I presume that by the beginning of November they will also be present in the index.
I guess that missing the “keywords” attribute within the META tag was what caused the low rating, though the keywords themselves were present.