Tech Mahindra Research Associate interview questions

Got a Mail from HR....Attended the Schedule... 1st Round: 3 Case Studies on Merger and Acquisition (Just Read Properly, you can easily find answers) and Summary Writing (Sample Provided) (Level - Easy) 2nd Round: Interview Conducted by TL (Questions Based on Case Study Provided to you) (Level - Easy) 3rd Round: Solve the Questions (Company Name, its domain, overall performance) (Level - Difficult) 4th Round: Aptitude and Grammar Test (Simple Questions) (Level - Easy) 5th Round: Interview Conducted by Head of Production (Questions Based on Case Study Provided to you) (Level - Easy) 6th Round: Call with Client (Be prepared for this, as final selection is based on this round only) (Level - Hard)