"GST (Goods and Services Tax) on disability aids like wheelchairs and Braille typewriters, once again shows this government's complete insensitivity towards our most vulnerable," Gandhi wrote on Twitter on Monday.
"Congress demands a full roll-back of this 'disability tax' that will put millions of our disabled people through further hardship," he added.
The Congress party had boycotted the roll out of the GST at a function in the Central Hall of Parliament on June 30 midnight, and accused the government of rolling out GST in a hurry.
Meanwhile, the Jammu and Kashmir Congress on Monday said it was not against implementation of the GST but it would not allow erosion of the state's special status.
"We are not against the Goods and Services Tax, but have problem with the way it is being implemented. The government should make it clear as to how to protect the special status of the state," J-K Congress chief G A Mir said.
"We will not allow erosion of the state's special position or its fiscal autonomy," he said.
Mir was talking to reporters after the Congress Legislature Party's meeting ahead of the special session of the state legislature starting tomorrow for the passage of the GST Bill.
Jammu and Kashmir is the only state which is yet to implement the GST.
The Goods and Services Tax (GST) -- India's biggest tax reform since independence -- came into force on July 1, unifying more than a dozen central and state levies.
The state Congress chief said, "The PDP-BJP coalition government is confused and divided over implementation of the GST. But they tried to befool people by showing they were in consultations with all the parties and other stakeholders."
Mir said the opposition parties demanded a draft proposal from the government for implementation of the new tax regime in the state.
(With inputs from agencies)