Exhibit 31.1

Certification of Chief Executive Officer
                  Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002



I, Kamal Duggirala, certify that:

1.	I have reviewed this quarterly report on Form 10-Q of Barra, Inc.;

2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state
a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not
misleading with respect to the period covered by this report;

3.	Based on my knowledge, the financial statements, and other financial information included in this report,
fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and
for, the periods presented in this report;

4.	The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure
controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

a)	designed such disclosure controls and procedures, or caused such disclosure controls and
procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its
consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report
is being prepared;

b)	evaluated the effectiveness of the registrant's disclosure controls and procedures and presented
in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered
by  this report based on such evaluation; and

c)	disclosed in this report any change in the registrant's internal control over financial reporting
that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual
report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial
reporting; and

5.	The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of
internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of
directors (or persons performing the equivalent functions):

a)	all significant deficiencies and material weaknesses in the design or operation of internal
control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process,
summarize and report financial information; and

b)	any fraud, whether or not material, that involves management or other employees who have a
significant role in the registrant's internal control over financial reporting.



Dated: February 12, 2004



| |     |                    
| | --- | -------------------
| | By: | /s/ Kamal Duggirala

| |                        
| | -----------------------
| |                        
| | Kamal Duggirala        
| | Chief Executive Officer



Certification of Chief Financial Officer
                  Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Greg Stockett, certify that:

1.	I have reviewed this quarterly report on Form 10-Q of Barra, Inc.;

2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state
a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not
misleading with respect to the period covered by this report;

3.	Based on my knowledge, the financial statements, and other financial information included in this report,
fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and
for, the periods presented in this report;

4.	The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure
controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

a)	designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be
designed under our supervision, to ensure that material information relating to the registrant, including its consolidated
subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being
prepared;

b) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this
report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by
this report based on such evaluation; and

c) disclosed in this report any change in the registrant's internal control over financial reporting that
occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report)
that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial
reporting; and

5.	The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of
internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of
directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over
financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report
financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant
role in the registrant's internal control over financial reporting.



Dated: February 12, 2004



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| | --- | -----------------
| | By: | /s/ Greg Stockett

| |                        
| | -----------------------
| |                        
| | Greg Stockett          
| | Chief Financial Officer







Signed originals of these written statements required by Section 302 have been
provided to the Company and will be retained by the Company and furnished to the Securities and
Commission or its staff upon request.

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