Sure i’m glad if i can help u along in this regard 
May i suggest that first of all u put all the power consumer together and calculate how many hours/day these appliances will be in need of electric power
Like this (just an example)
3 Ceiling fan á 80w run for 5 hours each = 1200w/h
5 Tubelights á 30w run for 6 hours each = 900w/h
U can add consumers/appliances as per ur requirement
Makes a total 2100w/h
So if u live in ISB/RWP u should know how many hours the sunshine lasts on averge per day at ur specific location. In this regrad just google to find that out
Now as above mentioned need is 2100W/h or 2.1KW/h and the Sunshine lasts around 10 Hours u need Solarpanels which produce atleast 210W so u can use it for 10 hours to get the desired 2100W/h
Now this is only a numerical calculation which won’t be aplicable in the practical life.
Problem is that the useable Sunshine/Radiation is too weak at the Dawn and Dusk to consistently produce 210W in above given example. So better take 10-15% higher capacity just to cover up the loss at those times. Instead 210W take 230W/240W
U may have look here
http://www.alibaba.com/product-gs/205850683/Off_grid_Solar_power_system_for.html