There was basically 4 technical rounds of interview(F2F) at Snapdeal office guragaon. 1 Round was totally based on Java and algorithm of basic questions on String, Array, Hashtable, Set. 2 Round was on developing the automation framework approaches and general java based algorithm to some complex variations to puzzle you. 3. Pure core Java round ask conceptual questions on core Java plus ask me to write some basic recursive functions and 2-3 code based puzzles. 4 and final round was taken by two people and they were asking about Selenium concept and testing based questions, all testing terms and definitions plus one code to get the angle between hour hand and minute hand. In totality it was average interview in terms of difficulty. If you are going for interview at snapdeal for SDET then must prepare Java and DataStructure don't go on trees and all but cover basics(Linked List, Array, Stack Queue).