Selection Process at Vinsol is not at all professional.The have 3 rounds Round 1-: aptitude qusetion 10 questions time limit 25 minutes.one has to give around 7 correct answers to this Round 2-some more aptitude questioms + Puzzles.(easy to crack) Round 3-Director round in this the company's director will ask basic questions in C.and 2-4 puzzles.He can ask u to code puzzles as well.