I have 4 computers/printers/broadband connection with 500 sq. ft office. Suggest some business opportunities.?

I am not intersted in referral programs/ email reading/ google adsense programs. suggest some other one pls

I don’t think your business opportunities depend on how many computers and or space you have – it depends on your own capabilities and expertise. What are you good at? What do you enjoy doing? What is there a niche in the market for? When you decide upon those, then go in that direction.