Rachna Kedia knocks on her neighbor’s front door in an apartment building in Malabar Hill, a posh enclave in south Mumbai. A man opens and raises his eyebrows in mock alarm. “I’m going! I’m going!” he says. “What about the rest of the family?” Kedia asks. One by one, family members appear to assure the representative of Volunteer for a Better India (VBI) — an NGO promoting volunteerism — that they will be voting on April 24.