MSUMI Motherson Sumi Wiring India Ltd Changes in credit ratings Announcement 2025 - Credit Rating Update CRISIL has reaffirmed Motherson Sumi Wiring India Ltd's long-term credit rating as AA+/Stable and short-term rating as A1+ as of October 1, 2025..Find Corporate Announcements for Press Releases, AGM, Insider Trading & SAST, Results and Corporate Action for Motherson Sumi Wiring India Ltd