Hello Neha.

That is quite a vague question.

I could just link you this article on the subject, but in summary:

I'd say you need to:

1. install the component (it is already in your server probably)

https://www.outsystems.com/forge/component-overview/9909/outsystems-maps

2. Read the documentation section

https://success.outsystems.com/Documentation/11/Developing_an_Application/Design_UI/Patterns/Using_Mobile_and_Reactive_Patterns/Interaction/Map

3. Try the Demo and look at its logic

https://www.outsystems.com/forge/component-overview/10984/outsystems-maps-sample

4. Adapt to your project