You should go for a Self-Publishing process only when you don't find any takers or any publishing house for your book. Alternatively what you can do is to have the manuscipt of your book, coupled with a nice Blurb for your book and a nice and cute forwarding letter and then forward them to various publishers. Don't go for big ones.. just start with smaller ones.. even Jaico, or there are many. Being in Delhi certainly helps and Daryaganj is home to many many publishers. Make the Blurb as interesting as possible and if they need, be ready with a synopsis of your story too which too has to be enthralling and appealing.
Also, if possible, create an e-book out of your manuscript and circulate it among your friends or knows 'writers' in your circle so that they can review it. adding the reviews to the portfolio for the would be publishers would also help a lot. !