Hi Purna,
What kind of event are you hoping to publicise?
If it’s a Repair Café or another type of community repair event, you’re welcome to add it 
You can do that by first creating a space for Repair Cafe Bengaluru. There are instructions for how to do that here: How to follow, create or customise a group
Once you’ve set up your group, you can add events to it by following the instructions here: How to create an event & invite people
Is that what you’re looking for?