I have been thinking of upgrading my phone to iPhone 5S and decided to sell my 2 years old iPhone 4. Taking a cue from the TV ads of OLX and Quikr, I decided to test both these websites to sell my phone. I clicked few photos of the phone and accessories and posted the ad on both OLX and Quikr. Within hours of posting the ad on Quikr, I received few responses on email and phone. Looking at the encouraging response, I took the Quikr upsell and converted my ad to “Premium Ad”. Quikr promises 10 times increase in the number of responses. The number of responses did increase…