My name is Soumya,
I am middle class girl I have more financial problems at home I am only the earning person in my family four members are depended on my income but my income to not enough to maintain family I have two sisters also for marriage so I want to do my own business with less investment with more profit at home to maintain my family because of traditions my parents don't want to end me outside so I want to do the business from home I have computer knowledge also and I studied so give me some suggestions to do my own business at home without investment so that I can maintain my family easily.

Sell online, your own site, eBay, etc. Perhaps goods produced locally like cloth or crafts.
Design websites for local merchants.
Teach private computer classes at your home.

Of course I think your family isn't being fair to you. Four of them is too many. At least one other should work or help you. How did this all fall on you?