Genpact USA, Inc.

Post-effective Amendment to an automatic shelf registration statement on Form S-3ASR or Form F-3ASR

Automatic shelf registration statement of securities of well-known seasoned issuers

Prospectus filed pursuant to Rule 424(b)(2)

Prospectus filed pursuant to Rule 424(b)(5)

Filing under Securities Act Rules 163/433 of free writing prospectuses