New Delhi, July 13 -- The water levels in Yamuna stretch in Delhi rose sharply on Sunday, increasing by over 2 metres, following heavy rainfall recorded in the hills upstream. This marks the first instance where the river has risen above 204m-mark after a prolonged dry period during summer months, said officials. According to officials, the river rose from 201.87m at 10pm on Saturday to 204.05m at 11am at the Old Railway Bridge - 2.18m over a 12 hour period. The Bridge at Loha Pul, near Yamuna Bazaar, acts as the standard for measuring water levels of the river in Delhi for the flood related measurements. The jump on Sunday marks the first significant increase in water levels after an extremely dry summer period, resulting in extensive wate...