OnMobile Software Engineer Java Developer interview questions

I think there was 4 rounds, as I got eliminated in 2nd round,so I cant say for sure. First round had 40 min written exam with 22 objective questions and 3 coding question. The objective questions were mostly based on finding output of program and tricky. The topic they covered in the written paper was mostly collection framework and multi-threading. After clearing this round, I got in for first round of technical interview. The questions that they asked here were mostly Database based. I got eliminated here.

Got a call from Naukri.com then 1. Online test on Hacker Rank which had 15 questions in 75 mins. I cleared this one. 2. Coding test in On mobile office(EC) which had 3 questions. I got rejected here.