New Delhi: Congress on Tuesday targeted Prime Minister Narendra Modi after his 97-year-old mother Hiraben visited a bank at her village in Gujarat to replace now-defunct banknotes with new ones, saying "no good son" would ever want this.

"I am very sad. No good son ever wants that his 97-year-old mother has to (face such a situation) and they boast of a 56-inch chest," party spokesman Kapil Sibal told reporters.

According to reports, party Vice-President Rahul Gandhi too took a dig at Modi over the issue and said "I'm not like Modi, I won't comment on his mother."

Congress leader Rashid Alvi, speaking separately, accused Modi of not following "putra dharma" (duties of a son).

"If a son cannot look after his own mother, how can one expect him to look after the people of the country?" he asked.

Accompanied by relatives, Hiraben, who was in a wheelchair, came to a branch of Oriental Bank of Commerce at Raisan village on the outskirts of Gandhinagar this morning and got notes worth Rs. 4,500 exchanged.

Modi had on November 8 announced scrapping of Rs. 500 and Rs. 1,000 notes to curb black money menace.

After the announcement, people have been queueing up at banks across the country to get their old high denomination notes exchanged for the new notes.