Rahul, who appeared before a magisterial court in Bhiwandi in Maharashtra in connection with a defamation case filed against him by an RSS worker, addressed an election rally here in the evening.
Recalling his court visit, he said while the Congress leaders were "smiling", the RSS leaders were sitting with "angry faces".
"I was in Bhiwandi today. There is a case against me filed by RSS. When I went there I was accompanied by Congress leaders like Ashok Chavan, Sanjay Nirupan and others.
During his address, he recalled the experience his sister Priyanka had when she was in a flight and met a senior BJP leader.
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"I asked (her) how was it (interaction)? She said everyone is angry...They don't smile though they talk properly. They (BJP) are like angry against entire world. I was wondering why BJP people are always angry. I realised they (BJP) feel they know everything," the Congress scion said.
Targetting RSS, he said the Sangh thinks they know everything.
"...And when they realise that their thinking doesn't match with rest of world, then they get angry. Their thinking is much different from yours," he told the gathering.
Congress is contesting on 37 seats in the coastal state which is going to polls on February 4, out of total 40.
Earlier in the day, the Bhiwandi court adjourned the hearing in the defamation case till March 3 for recording Rahul's plea.