Appointment of auditor beyond 1 month of incorporation

What if the directors of the Private Limited Company fail to appoint Auditor within 1 month of incorporation of company..

For eg. Pvt Ltd Company incorporated on 01.07.2013 and Auditor not appointed within 1 month of incorporation.

What shall be the best remedy available if they wish to appoint the Auditor for getting the books audited for the FY 2013-14 on 29.06.2014?

Whether provisions of New Companies Act, 2013 shall apply or old provisions of Companies Act, 1956 shall apply? 

Awaiting you suggestions / ideas..