Hi [speaker name],
I am reaching out to you from Obvious, a Bangalore-based digital product and strategy consulting firm.
I found out about you [establish connection - either via a person or through their work] and would like to invite you to be our speaker for [event name] on [date, time] at [venue with link to Google Maps location]. We are reaching out to you because of [expertise] and we therefore we believe that you will have a lot of value to add to this event.
The format of the event will be:
We also believe that it will be a great way for you to [value proposition].
Do let me know if this is something that would interest you.
I look forward to hearing from you!
Thank you, [Your Name] obvious.in