Sonia Gandhi good-naturedly accepted some ribbing from Finance Minister Arun Jaitley in parliament today as he presented the government's case for the Goods and Services Tax (GST) proposal to be urgently cleared. "You were smiling yesterday," Mr Jaitley said to the Congress chief about a remark made by a parliamentarian from her party that criticized the government for trying to push through the bill without allowing a parliamentary committee to review it. "I am smiling even now," said Mrs Gandhi, 68, offering evidence of her statement.