Saarrthi group is one of the biggest fraud and corrupted builder you will ever see. The live example of this is Sovereign where they left more than 250+ families in complete dark age. The society was handed over from the builder with lots of issues in basic amenities like electricity and water. They also did not deliver their promises which left these resident families in no position.
It will be highly stupid of anyone investing in their projects inspite of such live example in front of them.