According to several refurbishers, sale of second-hand iPhones account for 40% sales.
Sellers say that iPhone 5 series - 5s and 5c -followed by iPhone 4, 4s and iPhone 6 are some of the most in-demand models.
"We sold nearly 1,00,000 units in 2015, a growth of over 40% from 2014," Hitendra Chaturvedi, founder of
Greendust gives discounts of 50% to 75% from the original retail price.
Likewise, another refurbisher, Overcart saw 100% year on year sale of second-hand phones, albeit on a small base, making up 5% of its total sales.
As per reports, India's refurbished and unboxed mobile phone market has increased to $3 billion (Rs 20,000 crore) and is set to grow 25-30% in 2016.
Second-hand models of Samsung, Micromax, Lenovo and Asus also gain interest.