Former Home Minister of undivded state Sabitha Indra Reddy's son P Karthik Reddy resigned from Congress party today.Kartik Reddy quits party after not giving the ticket from Rajendranagar constituency. TDP alloted Rajendranagar ticket to Ganesh Gupta.It is said that if Kartik Reddy is not offered B-Form ticket, it will be assumed that his resignation has been accepted.