Biswas, Rukmini (19 December 2017). Khaitan, CAM, Sidleys team up for $142.5m Natco Pharma QIP. Legally India      
https://www.legallyindia.com/capital-markets/khaitan-cam-sidney-austin-team-up-for-142-5m-natco-pharma-qip-00011130-8937