KOLKATA: A clutch of Kolkata-based real estate players and foreign, as well as domestic investors, have invested close to Rs 4 crore in Bengaluru-based firm FalconBrick Technologies. The startup, which owns a mobile-based solution for accelerating construction projects, will use the funds to enhance its product and accelerate business development.The angel round was led by Kolkata builders like Apurva Salarpuria, director of Salarpuria Sattva Group, Siddharth Pansari, director of Primarc Group, and Vidyut Saraf, director of Forum Projects. It was co-led by Singapore Angels.The round also saw participation from real estate developer Rahul Talwar, Abhishek Bhatewara of Rohan Builders, Dreamweaver Investment & Business Solutions and Mridul Upreti, CEO of segregated funds at Jones Lang LaSalle, LetsVenture and Mumbai Angels. A le ading international VC fund has also participated in this round.Founded in November 2015 by Sashi Kiran, Gautam Mayur and Aditya Shankar, the startup automates end-to-end project operations including execution, finishing, handover and facility management. Its app brings site execution, quality , planning and CRM teams as well as contractors onto a single platform so that they can monitor the project on the mobile phone right from excavation till handover.