For a man who will inherit vast tracts of fertile farmland in Punjab, India’s grain bowl, Jaswinder Singh made what seemed to him a logical career move -- he took a job with a telecoms company in New Delhi. [...] Singh’s choice reflects a growing and worrisome trend in the nation’s agriculture sector: Indian farms are failing to attract capital or talent, either from rich landlords like Singh, or the 21,000 students who graduate from India’s 50 agricultural and veterinary universities.