Trehan Luxury Low Rise Floors in Sector 35 Sohna, South of Gurgaon by Trehan Group. Trehan offers 3BHK + Basement + Terrace Luxury Floors with premium amenities. Call 9250933999 For Trehan Floors Price. Located in Sector 35 Sohna, the Trehan Project Sector 35 Sohna is strategically situated to offer easy access to key landmarks and major highways. Whether you’re commuting to work or exploring the city, this location is perfect for those seeking a peaceful residential area with excellent connectivity.