Raunak Group is the developer of Raunak Serene. The company is known for residential projects in the Mumbai Metropolitan Region, particularly Thane. However, specific information on their prior projects, their customer service, and their financial stability, is limited in the provided data. Further investigation will be required to properly assess their project quality and financial standing. Contact details have been provided which could be used to do some more research. This would ideally include checking ratings and customer reviews.