Study the top 5 or 10 sites for "Pondicherry." Study the top-ranked sites for various other cities (Mumbai, Bangalore, London, Tokyo, whatever). What is their content about? What kinds of articles do they have? Can you emulate their content on your site (without plagiarizing, of course)?
Just add unique contents on your website by adding the keyword pondicherry. Also building some quality and high Page rank back links from related website for that particular keywords. Just add articles on top sites like ezinearticles, article dash board with that keyword in the resource box while submitting.