New Delhi, Jun 4 (PTI) Silver prices dropped by Rs 621 to Rs 2.62 lakh per kilogram in futures trade on Thursday amid weak global trends and concerns that elevated crude oil rates could keep interest rates higher for longer by central banks. On the Multi Commodity Exchange, the white metal for July delivery depreciated by Rs 621, or 0.24 per cent, to Rs 2,62,337 per kg in a business turnover of 11,830 lots. Analysts said the decline in silver prices came as renewed tensions in West Asia kept ene