"On the Sthapana Diwas of @BJP4India, I congratulate the entire family of BJP Karyakartas working across the length and breadth of India," he tweeted.
"We recall with pride the hardwork of generations of BJP Karyakartas who built the Party brick by brick with the endeavour to serve society," said Modi, who visited the BJP headquarters here to pay floral tributes to Deen Dayal Upadhyay, whom he described as "our inspiration".
"Guided by the Mantra of Antyodaya, our efforts to serve India especially the poor & the marginalised continue with great vigour," he added.
BJP was formed on this day in 1980.
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