According to media reports, more than a lakh people are expected to participate in the rally, that will be held at the Secretariat Grounds in Rewari.
Modi is all set to address ex-servicemen in the rally.
Former Army chief, General (retd) VK Singh is also likely to attend.
According to media speculations, Modi's speech will be watched on the grounds that whether he makes any promises for the benefits of the ex-servicemen.
Ending all speculations and signalling the end of LK Advani era, the BJP on expected lines named Modi as the PM candidate of the party for the upcoming Lok Sabha elections on Friday.
"The BJP is having a tradition to announce its Prime Ministerial candidate. The Parliamentary Board of the BJP met today and decided that Narendra Modi will be our PM candidate for the next Lok Sabha elections," declared Rajnath Singh at the BJP headquarters in New Delhi amid jubilation by the party workers.
--IBNS (Posted on 15-09-2013)