POWER OF ATTORNEY

March 15, 2021

Know all by these presents, that the undersigned hereby makes, constitutes and
appoints Kanishka Roy and Clay Whitehead signing singly, as the undersigned's
true and lawful attorney-in-fact, with full power and authority as hereinafter
described on behalf of and in the name, place and stead of the undersigned to:

(1) prepare, execute, acknowledge, deliver and file Forms 3, 4, and 5 (including
    any amendments thereto) with respect to the securities of Plum Acquisition
    Corp. I, a Cayman Islands exempted corporation, or any successor thereto
    (the "Company"), with the U.S. Securities and Exchange Commission, any
    national securities exchanges and the Company, as considered necessary or
    advisable under Section 16(a) of the Securities Exchange Act of 1934 and the
    rules and regulations promulgated thereunder, as amended from time to time
    (the "Exchange Act");

(2) seek or obtain, as the undersigned's representative and on the undersigned's
    behalf, information of transactions in the Company's securities from any
    third party, including brokers, employee benefit plan administrators and
    trustees, and the undersigned hereby authorizes any such person to release
    any such information to the undersigned and approves and ratifies any such
    release of information; and

(3) perform any and all other acts which in the discretion of such attorney-in-
    fact is necessary or desirable for and on behalf of the undersigned in
    connection with the foregoing.

The undersigned acknowledges that:

(1) this Power of Attorney authorizes, but does not require, such attorney-in-
    fact to act in his discretion on information provided to such attorney-in-
    fact without independent verification of such information;

(2) any documents prepared and/or executed by such attorney-in-fact on behalf of
    the undersigned pursuant to this Power of Attorney will be in such form and
    will contain such information and disclosure as such attorney-in-fact, in
    his or her discretion, deems necessary or desirable;

(3) neither the Company nor such attorney-in-fact assumes (i) any liability for
    the undersigned's responsibility to comply with the requirements of the
    Exchange Act, (ii) any liability of the undersigned for any failure to
    comply with such requirements, or (iii) any obligation or liability of the
    undersigned for profit disgorgement under Section 16(b) of the Exchange Act;
    and

(4) this Power of Attorney does not relieve the undersigned from responsibility
    for compliance with the undersigned's obligations under the Exchange Act,
    including without limitation the reporting requirements under Section 16 of
    the Exchange Act.

The undersigned hereby gives and grants the foregoing attorney-in-fact full
power and authority to do and perform all and every act and thing whatsoever
requisite, necessary or appropriate to be done in connection with any of the
foregoing matters as fully to all intents and purposes as the undersigned might
or could do if present, hereby ratifying all that such attorney-in-fact of, for
and on behalf of the undersigned, shall lawfully do or cause to be done by
virtue of this Power of Attorney.

This Power of Attorney shall remain in full force and effect until revoked by
the undersigned in a signed writing delivered to such attorney-in-fact.

                                   * * * * *

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 15th day of March 2021.


                                        By: /s/Mike Dinsdale
                                        ---------------------------------------
                                        Name: Mike Dinsdale
                                        Title: Chief Financial Officer,
                                        Chief Operating Officer,and Director