New Delhi, June 27 -- Mumbai: On 23 June, infrastructure giant Larsen & Toubro (L&T) listed India's first environmental, social & governance (ESG) bond on the National Stock Exchange under Sebi's new framework. While Indian companies have previously raised ESG debt overseas, L&T's rupee-denominated issuance is a domestic first under Sebi's guidelines.

Experts believe the Rs.750 million sustainability-linked bond (SLB), anchored by HSBC and offering a 6.35% coupon (competitive by market standards) suggests that investors are willing to back credible ESG-labelled issuances.

But whether this debut sparks a broader trend or remains an isolated milestone hinges on a critical factor: investors' willingness to pay the "greenium" - the differen...