Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Sun Life Assurance CO of Canada
 2. Date of Event Requiring Statement (Month/Day/Year)
10/07/2010		 3. Issuer Name and Ticker or Trading Symbol
TORTOISE MLP FUND, INC. [NTG]
(Last)
(First)
(Middle)
150 KING STREET WEST, 		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

TORONTO, A6 M5H 1J9		 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
$12,000,000 2.48% Senior Notes Series A due Dec. 15, 2013 $ 6,667,000
D
 
$112,000,000 4.29% Senior Notes Series D due Dec. 15, 2020 $ 8,666,358
D
 
$112,000,000 4.29% Senior Notes Series D due Dec. 15, 2020 $ 666,642
D (1)
 
$12,000,000 2.48% Senior Notes Series A due Dec. 15, 2013 $ 6,667,000
I
See Below.
$112,000,000 4.29% Senior Notes Series D due Dec. 15, 2020 $ 8,666,358
I
See Below.
$112,000,000 4.29% Senior Notes Series D due Dec. 15, 2020 $ 666,642
I
See Below.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Sun Life Assurance CO of Canada
150 KING STREET WEST
TORONTO, A6 M5H 1J9		     X    
SUN LIFE INSURANCE & ANNUITY CO OF NEW YORK
60 E 42ND ST, SUITE 1115
NEW YORK, NY 10165		     X    
SUN LIFE FINANCIAL INC
SUN LIFE ASSURANCE CO OF CANADA
150 KING STREET WEST SUITE 1400
TORONTO, A6 		     X    

Signatures

/s/ John T. Donnelly, Senior Managing Director - Investment Products and Strategies on behalf of Sun Life Assurance COmpany of Canada and Sun Life Insurance and Annuity Company of New York 10/14/2010
**Signature of Reporting Person Date
/a/ Ann King, Authorized Signer for Sun Life Assurance Company of Canada and Sun Life Insurance and Annuity Company of New York 10/14/2010
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Direct ownership held by Sun Life Insurance & Annuity CO of New York, an affiliate of Sun Life Assurance CO of Canada.
 
Remarks:
Sun Life Financial Inc.(a) owns 100% of the outstanding shares of common stock of Sun Life Assurance Company of Canada, the direct owner of the 2.48% Senior Notes Series A due December 15, 2013, and $8,666,358 of the 4.29% Senior Notes Series D due December 15, 2020 and (b) indirectly owns 100% of the outstanding shares of common stock of Sun Life Insurance and Annuity Company of New York, the direct owner of $666,642 of the 4.29% Senior Notes Series D due December 15, 2020.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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