GPTINFRA GPT Infraprojects Ltd Changes in credit ratings Announcement 2024 - Credit Rating Upgrade CRISIL Ratings upgraded GPT Infraprojects Ltd.'s long-term credit rating from A- to A, and short-term rating from A2+ to A1 on December 24, 2024..Find Corporate Announcements for Press Releases, AGM, Insider Trading & SAST, Results and Corporate Action for GPT Infraprojects Ltd