The structure material ,assembling and painting cost was around Rs.8000.
http://www.morningstarcorp.com/en/tristar%20mppt It will cost me around 550 US dollars including taxes/duties.
purchased 02 Lead Acid batteries FB make 220AH. Cost me around Rs.24000. I preferred FB because the maintenance free deep cycle batteries are quite expensive and the market is full of poor quality Chinese batteries. Later on i shall discuss on this.