Hello OP.
We didnt find substantial information on your accusation to prove it is a scam. I would not say that the picture that you are referring to is a stock photo (read
here about stock photo). It is just a picture on a photographer/agency website.
We recommend you to remove the other images that are not part of the team, as they can complain about the unauthorized use of their image and especially for being posted with a scam accusation. Maybe you should remove the word "scam" from your post, contact the team and ask to provide more images of the founder - Praveen Kallipatti
We found this image where it was saved with another name: Edison Aravindh (but doesn't mean that is the name of the person - it could be the name of the photographer)
http://www.navansphotography.com/wp-content/uploads/2018/11/Aravindh_Edison_15.jpgHis Github profile is new, and there is only 1 activity.
https://github.com/PraveenkjWe emailed one of their advisor -
Maura - asking a few questions. we will post updated here once we get her response.