"The idea was to change the principle communicator of the party from the son to the mother," he said.
The BJP leader, who is contesting the Lok Sabha polls from Amritsar, said the act of bring Sonia's messages on TV was an expression of a "lack of confidence in Rahul Gandhi, in as much as his speeches to the people were not working."
"Messages on paid television time cannot last minute change the electoral agenda. Price rise, mismanagement of the economy, corruption, dilution of the office of Prime Minister cannot be a part of either 'Bhartiyata' or 'Hindustaniat'. This message will not click," Jaitley said.
He claimed the only message from Sonia Gandhi's telecast on "paid television time" is that Congress party's new slogan now is "Mein Nahin Mom".
In his post, Jaitley referred to a survey shown on NDTV, which said the LS polls will give the BJP 226 seats in Parliament and to the NDA an absolute majority of 275 seats.