Online classifieds platform Quikr has acquired second-hand goods marketplace Zefo for an undisclosed sum, which reportedly marks Quikr's 15th acquisition. As per Crunchbase, Zefo has raised $19 million in disclosed funding till date from Sequoia Capital India, BEENEXT, among others. Bengaluru-based Zefo was founded in 2015 by Rohit Ramasubramanian, Himesh Joshi, Arjit Gupta and Karan Gupta.