Joined by members from some other Opposition parties, Congress members trooped into the Well soon after the Question Hour began and were engaged in sloganeering.
The defence minister said that There was no discussion on Kashmir in the meeting between US President Donald Trump and Prime Minister Narendra Modi in Japan.
Gandhi said that PM Modi must speak on the issue as the foreign ministry's denial won't do.
A meeting of opposition leaders was held in Congress leader Ghulam Nabi Azad's chamber in Parliament.
The External Affairs Minister said that all outstanding issues between India and Pakistan can be discussed only bilaterally.