CII-IGBC will hold the 24th Green Building Congress 2026 at Jio World Convention Centre, Mumbai, from November 26 to 28, with over 3,000 delegates. The Confederation of Indian Industry (CII) – Indian Green Building Council (IGBC) will organise the 24th Green Building Congress 2026 at the Jio World Convention Centre, Mumbai, from November 26 to 28.