• B.Sc. (Hons) in Management and Information Technology , University of Kelaniya, Sri Lanka.

• Supply chain
• Logistics
• Optimization
• Data and Analytics
• Operations Management

• Business System Engineering

• Optimization Methods
• Operations Management
• Computer based tools
• Business Process Engineering

1. GK Abhilashani, MID Ranathunga, AN Wijayanayake, (2023). Minimising Last-Mile Delivery Cost and Vehicle Usage Through an Optimised Delivery Network Considering Customer-Preferred Time Windows. International Research Conference on Smart Computing and Systems (SCSE -2023), Kelaniya, Sri Lanka. (Scopus Indexed).
2. Abhilashini, G. K., Ranathunga, M. I. D., & Wijayanayake, A. (2022). Optimising last-Mile delivery cost while maximizing customer preferences considering time windows on delivery: A systematic literature review, International Conference on Business Management (ICBM) 2022.