Exhibit 16(23)(a) – Consent of Ernst & Young LLP, Independent Registered Public 

Accounting Firm 

We consent to the reference to our firm under the caption “Experts” in the Registration 

Statement (Form S-3, No. 333-_____) and related Prospectus of ING Life Insurance and 

Annuity Company and to the incorporation by reference therein of our reports dated 

March 27, 2012, with respect to the consolidated financial statements and schedules of 

ING Life Insurance and Annuity Company included in its Annual Report (Form 10-K) 

for the year ended December 31, 2011, filed with the Securities and Exchange 

Commission. 

 s/ Ernst & Young LLP

Atlanta, Georgia 

April 2, 2012