Hi Rohan,
welcome to MDAnalysis!
MDAnalysis is a Python package for the analysis of computer simulations of systems at the atomic scale. The best way to get started is to get your hands dirty following the MDAnalysis User Guide:
Once you are a bit familiar with the MDAnalysis package, you can look at the sections of the User Guide explaining how to contribute:
The mentors of Project #4 (Hugo and Orion) will be able to give you more details on that specific project, but the above should get your started in the right direction.
All the best,
Rocco