Barmer, April 10 -- Rajasthan's Barmer district reported its first Covid-19 case on Wednesday when a 58-year-old man tested positive for the disease after returning from Jaipur's Ramganj, a hot spot of the pandemic, on Sunday despite the lockdown, a top health official said. The man tested positive even as the state said it was replicating the strict Bhilwara model of containment in hot spots like Ramganj, where a 45-year-old man transmitted the virus to his 19 family members after returning from Oman....