First round was pen and paper based written. 2 question in 30 mins. Question was pattern based. Like to print 3a4b2d as aaabbbbdd.
Second round was technical f2f. Asked to write sql querries, collection, concurrent exception, threads, spring mvc, some codes in depth.
Third technical f2f round. Asked about given Arraylist of employees. Sort it based on salary first and if salary same then sort on basis of name. And other sorting algorithms.