Notice under section 245 of it act 1961

Bc Jain (4 Points)

28 February 2016  
I have received demand under section 1431a for AY 2012--rs --17640 /- demand raised date 24/08/2013 and for AY 2011 rs.....260/- demand raised date 12/10/2012 while no intimation was received prior to this email.What to do now?