With the investment in hand I think you can very well start the business you have in mind. You can go online and do digital marketing. You can a lot of trading activity like refurbished computer sales and service, digital education online classes for students.
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Launch an ad campaign online or offline fr a free service checkup in an industrial area Back it up with proper service technicians Combine that with a offer of buyback or exchange Tie up or Co Marketing with a computer seller who is not into servicing go for a cross referral buyback or exchange will also help Cross referral of this computer seller fr all of his existing clients at a discounted rate Or he could sell his computer with a bundle offer of extended warranty and u can share profits with him