[CC may contain inaccuracies] In just a few years, India's derivatives market surged to become the world's largest by one year. But the runaway growth has the country's market watchdog on edge. Last week, the Indian regulator, Sebi, imposed a temporary ban on one of the markets biggest players.India's market regulator is barring Jain Street from access to its local securities market. Sebi alleged the New York based company misled retail participants through index manipulation. It even ordered the seizure of ...