The TN government on Monday revealed that a part of the 43 km-long Chennai monorail project is proposed to be taken up under Public Private Partnership mode and will be developed on a design,build,operate, and transfer basis. Transport Minister MR Vijayabhaskar informed the Tamil Nadu Assembly that Poonamallee-Kathipara with a link from Porur to Vadapalani, 20.68 km, at an estimated project cost of Rs 3,267 crore will be implemented under Public Private Partnership.