The two leaders met outside parliament just before a tribute in the house to the nine people who were killed in the terror attack.
"I am deeply hurt by the falsehood being spread, everyone knows my track record," Dr Singh said in the video version of the statement he had put out yesterday in reaction to the comments PM Modi made at an election rally in Gujarat on Sunday.
PM Modi and Manmohan Singh greeted each other as they came face to face at an event to mark the 2001 parliament attack anniversary.
Emphatically denying that Gujarat came up at Mr Aiyar's dinner, the former Prime Minister said only India-Pakistan relations were discussed.
If Dr Singh's statement yesterday appeared uncharacteristically sharp, its video form emerging back-to-back seemed set up by the Congress for even greater impact one day before the last round of voting in Gujarat, PM Modi's home state.
Rahul Gandhi was seen greeting Ravi Shankar Prasad at event to mark the 16th anniversary of parliament attack.
After an acrid campaign for the Gujarat election, Congress leader Rahul Gandhi was seen at the tribute function greeting and being congratulated by BJP leaders.
The 47-year-old, set to take formally charge of the Congress party on Saturday, shook hands warmly with union ministers Sushma Swaraj and Ravi Shankar Prasad.
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