Just got accepted by MAS.

Timeline as follow.
First Week Jan- Sent in application
Second Week Jan - Received an assignment with one week deadline. 4 questions to choose from and wrote in research essay style
Early Feb - Shortlisted and arranging for interview
Mid Feb - Went for interview and got accepted the next morning. Interview was extremely grilling. 5 cases of which one is a written assignment. Understand it differs from department to department. Was offered 3 departments to choose from, of which 2 were what I applied for.
Third week Feb - HR called to outline general package
Second week Mar - Received official letter of offer

Hope this helps other fellow applicants