Exhibit 24(b)(10) – Consent of Ernst & Young LLP, Independent Registered Public
Accounting Firm

We consent to the reference to our firm under the caption “Experts” and to the use of our
report dated March 31, 2010 (except for note 2, as to which the date is April 5, 2010),
with respect to the consolidated financial statements of ING Life Insurance and Annuity
Company as of December 31, 2009 and 2008, and for each of the three years in the period
ended December 31, 2009, and to the use of our report dated April 8, 2010, with respect
to the statements of assets and liabilities of Variable Annuity Account C of ING Life
Insurance and Annuity Company as of December 31, 2009, and the related statements of
operations and changes in net assets for the periods disclosed in the financial statements,
included in Post-Effective Amendment No. 9 to the Registration Statement (Form N-4
No. 333-134760) and the related Prospectus and Statement of Additional Information of
Variable Annuity Account C of ING Life Insurance and Annuity Company.

Atlanta, Georgia
May 7, 2010