evidence: Prime Minister Narendra Modi with his mother Heeraben Modi (File Photo: ANI) [...] The Centre for Narendra Modi Studies, a think tank founded three years back, has invited former prime minister H D Deve Gowda as the chief guest for its June 18 event to mark the birth anniversary of Heeraben Modi, the late mother of Prime Minister Narendra Modi. [...] PM Narendra Modi's mother Heeraben passes away at the age of 100