About the approvals there is no such update and the builder are new in this project. They have not completed any project till date so it will be difficult to give feedback. I will only suggest you to check everything before booking a property.
The price of 3 bhk ranges from Rs 33 lakhs to Rs 2.50 crores approximately depending on what types of apartment you are looking for. The project will get completed by October 2018 (as estimated)
Currently Benson Town has home ticket prices ranging from Rs 6,600 sq ft to Rs 12,200 per sq ft. The locality is in the north- eastern side of the city and it is well connected with the other parts of the city.