New Delhi: Prime Minister Narendra Modi on Sunday described the upcoming 'Maha Kumbh' as the "mahakumbh of unity" as he asked people to return from the grand religious congregation with the resolve to banish hate and division from the society. Speaking in his monthly Mann ki Baat broadcast, Modi said, "Mahakumbh ka sandesh ek ho pura desh." "Mahakumbh's speciality lies …