Since you're already comfortable doing DIY for your amp, why not go the same route for your speakers? One lakh in a good DIY speaker pair will give you quality and performance in the Rs.3-5 lakh rupee bracket for commercial branded speakers.
If you're not comfortable building from plans, because you don't have access to a good carpenter, etc, then you can contact DIYaudioparts about their SB Acoustics Satori kits. Both their kits are supposed to have excellent performance and very natural, neutral sound.