New Delhi : Ayonika Paul took silver in the women’s 10m Air Rifle event at the Asian Olympic qualifying tournament to secure a quota for the Rio Games at the Karni Singh Shooting Range here on Friday. Indian shooters have secured 11 quota berths for the Rio Olympics so far. They have matched the quota berths secured at the previous Olympics in London four years ago. With four more days to go in the event, the Indian shooting squad look set to go one better than London.