The story of a deaf-mute woman who lost her family when she wandered over one of the world’s most militarised borders as a child has sparked a rare moment of warmth between nuclear rivals India and Pakistan, as diplomats work to help her.Geeta, a slim young Hindu woman now in her early 20s, was around 11 years old when she crossed from India to Pakistan, a mistake that would spark an odyssey to find her family and captivate the public after a hit film with a similar plot was released last month.