Sharing the dais were former army chief Gen. V.K. Singh and a number of retired military officers, including Olympic silver medallist Rajyavardhan Singh Rathore who joined the party recently.
As Modi got on to the dais, he was greeted with thunderous applause by the crowd gathered there despite sweltering heat inside the tented venue.
Enthused by the response, Modi said: "No camera can capture this moment. No eye can capture it fully. This is a call for change from this land of Haryana. This is a call to the sultanate of Delhi."
"There is visible enthusiasm to listen to Modi among people, including the large number of ex-servicemen who have come from different parts of Haryana," said Gen. V.K. Singh.
Modi flew in to Rewari, which is not a traditional support base of the BJP, in a helicopter from Delhi.
As he started to speak, there was almost a stampede-like situation around the dais. "He is a decisive leader and an honest person," retired JCO Rajinder Singh, who was present, told IANS.
"I support Modi and will vote for him though I never vote for BJP," said Vikas Yadav, who has finished his MBA.
Modi was referred to as a future prime minister by the other speakers. There were huge Modi hoardings around the venue with the parliament building in the background.