UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934


                           (Amendment No.____________)


             The BlackRock Investment Quality Municipal Trust, Inc.
--------------------------------------------------------------------------------
                                (Name of Issuer)


                          Common Stock, par value $.01
--------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                   09248F109
--------------------------------------------------------------------------------
                                 (CUSIP Number)


              Unknown-Shares in dividend re-investment since 1994
--------------------------------------------------------------------------------
            (Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

          [X] Rule 13d-1(b)

          [_] Rule 13d-1(c)

          [_] Rule 13d-1(d)


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* The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 or otherwise subject to the liabilities of that section of the Act but
shall be subject to all other provisions of the Act (however, see the Notes).





CUSIP No.09248F109                 13G                    Page __ of___ Pages


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1. NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)


Sakharam D. Mahurkar-Trustee
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2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)

(a)
   -----------------------------------------------------------------------------
(b)
   -----------------------------------------------------------------------------
--------------------------------------------------------------------------------
3. SEC USE ONLY



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4. CITIZENSHIP OR PLACE OF ORGANIZATION


United States Citizen
--------------------------------------------------------------------------------
  NUMBER OF    5.   SOLE VOTING POWER

   SHARES           1,400,107
               -----------------------------------------------------------------
BENEFICIALLY   6.   SHARED VOTING POWER

  OWNED BY
               -----------------------------------------------------------------
    EACH       7.   SOLE DISPOSITIVE POWER

  REPORTING         1,400,107
               -----------------------------------------------------------------
   PERSON      8.   SHARED DISPOSITIVE POWER

    WITH
--------------------------------------------------------------------------------
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON


1,400,107
--------------------------------------------------------------------------------
10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See
     Instructions)

                                                                             [-]
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11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9


Unknown
--------------------------------------------------------------------------------
12. TYPE OF REPORTING PERSON (See Instructions)


IN
--------------------------------------------------------------------------------




CUSIP No.________                     13G                    Page __ of __ Pages



Item 1(a).  Name of Issuer:


            The BlackRock Investment Quality Municipal Trust, Inc.
            --------------------------------------------------------------------

Item 1(b).  Address of Issuer's Principal Executive Offices:

            100 Bellevue Parkway
            Wilmington DE 19809
            --------------------------------------------------------------------

Item 2(a).  Name of Person Filing:


            Sakharam D. Mahurkar-Trustee
            --------------------------------------------------------------------

Item 2(b).  Address of Principal Business Office, or if None, Residence:

            2768 Palm Springs Lane
            Aurora IL 60502
            --------------------------------------------------------------------

Item 2(c).  Citizenship:


             United States
            --------------------------------------------------------------------

Item 2(d).  Title of Class of Securities:


            Common Stock
            --------------------------------------------------------------------

Item 2(e).  CUSIP Number:


            09248F109
            --------------------------------------------------------------------

Item        3. If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b)
            or (c), Check Whether the Person Filing is a:

     (a)       [_] Broker or dealer registered under Section 15 of the Exchange
               Act.

     (b)       [_] Bank as defined in Section 3(a)(6) of the Exchange Act.

     (c)       [_] Insurance company as defined in Section 3(a)(19) of the
               Exchange Act.

     (d)       [_] Investment company registered under Section 8 of the
               Investment Company Act.

     (e)       [_] An investment adviser in accordance with Rule
               13d-1(b)(1)(ii)(E);

     (f)       [_] An employee benefit plan or endowment fund in accordance with
               Rule 13d-1(b)(1)(ii)(F);

     (g)       [_] A parent holding company or control person in accordance with
               Rule 13d-1(b)(1)(ii)(G);

     (h)       [_] A savings association as defined in Section 3(b) of the
               Federal Deposit Insurance Act;

     (i)       [_] A church plan that is excluded from the definition of an
               investment company under Section 3(c)(14) of the Investment
               Company Act;

     (j)       [_] Group, in accordance with Rule 13d-1(b)(1)(ii)(J).





CUSIP No.__________                   13G                    Page __ of __ Pages


Item 4.  Ownership.

     Provide the following information regarding the aggregate number and
percentage of the class of securities of the issuer identified in Item 1.

     (a) Amount beneficially owned:
          1,400,107 shares
          ----------------------------------------------------------------------

     (b) Percent of class:
          Unknown
          ----------------------------------------------------------------------

     (c) Number of shares as to which such person has:

          (i) Sole power to vote or to direct the vote1, 1,400,107


          (ii) Shared power to vote or to direct the vote_____________________,


          (iii) Sole power to dispose or to direct the disposition of, 1,400,107


          (iv) Shared power to dispose or to direct the disposition of________



Item 5.  Ownership of Five Percent or Less of a Class.

     If this statement is being filed to report the fact that as of the date
hereof the reporting person has ceased to be the beneficial owner of more than
five percent of the class of securities check the following [ ].


         -----------------------------------------------------------------------

Item 6.  Ownership of More Than Five Percent on Behalf of Another Person.



         -----------------------------------------------------------------------

Item 7.  Identification and  Classification of the Subsidiary Which Acquired the
         Security  Being  Reported on by the Parent  Holding  Company


         -----------------------------------------------------------------------

Item 8.  Identification and Classification of Members of the Group.



         -----------------------------------------------------------------------

Item 9.  Notice of Dissolution of Group.



          ----------------------------------------------------------------------

Item 10.  Certifications.

     (a)  The following certification shall be included if the statement is
          filed pursuant to Rule 13d-1(b):

          "By signing below I certify that, to the best of my knowledge and
          belief, the securities referred to above were acquired and are held in
          the ordinary course of business and were not acquired and not held for
          the purpose of or with the effect of changing or influencing the
          control of the issuer of the securities and were not acquired and are
          not held in connection with or as a participant in any transaction
          having such purpose or effect."


     (b)  The following certification shall be included if the statement is
          filed pursuant to Rule 13d-1(c):

          "By signing below I certify that, to the best of my knowledge and
          belief, the securities referred to above were not acquired and are not
          held for the purpose of or with the effect of changing or influencing
          the control of the issuer of the securities and were not acquired and
          are not held in connection with or as a participant in any transaction
          having such purpose or effect."





                                    SIGNATURE

     After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.


                                               April 15, 2008
                                        ----------------------------------------
                                                        (Date)


                                         /s/ Sakharam D. Mahurkar, M.D.
                                        ----------------------------------------
                                                      (Signature)


                                        Sakharam D. Mahurkar, M.D.
                                        ----------------------------------------
                                                      (Name/Title)



Note. Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7 for other parties
for whom copies are to be sent.

Attention. Intentional misstatements or omissions of fact constitute federal
criminal violations (see 18 U.S.C. 1001).