PRAYAGRAJ, Aug. 30 -- After witnessing a receding trend for nearly five days, the water levels of both the Ganga and the Yamuna rivers registered a sharp rise over the past 24 hours in the district, pushing both rivers above the 81-metre mark for the second time in recent weeks on Saturday. According to the flood control room, the Yamuna recorded a rise of 103 cm between 8 am on Friday and 8 am on Saturday, reaching 80.68 metres at Naini. During the same period, the Ganga rose by 98 cm at Chhatnag to reach 80.16 metres, while at Phaphamau it increased by 20 cm to touch 80.69 metres. The rising trend continued during the next 12 hours. Between 8 am and 8 pm on Saturday, the Yamuna climbed another 26 cm to reach 81.14 metres. The Ganga at Chhatnag rose by 35 cm to 80.69 metres, while at Phaphamau it increased by 28 cm, crossing the 81-metre mark and reaching 81.03 metres by evening. Officials attributed the fresh surge largely to the release of around 2.70 lakh cusecs of water from dams in Hamirpur, Jhansi and Mahoba districts. As a result, the Yamuna is expected to continue rising over the next four to five days. The Ken, Betwa and Tons rivers are also in spate, contributing to the increased inflow into the Yamuna. However, the rise in the Ganga's water level has been comparatively slower. Data from the flood control room showed that the Yamuna was rising at a speed of 4 cm per hour, while the Ganga at Chhatnag was increasing by about 2.5 cm per hour. At Phaphamau, the speed of rise remained below 1 cm per hour. The Betwa river has witnessed a significant increase, with its water level rising by nearly three metres over the past 24 hours. The Ken river also recorded an increase of 25 cm during the same period. Officials said that water was released in two phases from the Maidaha Dam on the Virma river in Hamirpur, the Matatila Dam on the Betwa in Lalitpur and the Lahchura Dam on the Jhansi-Mahoba border. Given the continued inflow from upstream rivers and reservoirs, experts believe there is little possibility of the Yamuna's water level receding over the next four to five days. The renewed rise has once again increased concerns in low-lying areas that had only recently received relief as floodwaters receded. Meanwhile, a truck was submerged in the Ganga waters near Chhota Baghada on the Gangapath late Friday night. According to reports, the vehicle had been parked when the water level was relatively low, but was later engulfed as the level rose. Meanwhile, floodwaters have once again started advancing towards populated areas, including Sangam Nose, Nagvasuki, Daraganj and Salori. The Tons River in the trans-Yamuna region is also rising rapidly, a development that officials attribute to rainfall in the Meja, Manda and Ghoorpur areas. Rising floodwaters have reached the vicinity of the Tharwai power substation, raising concerns that the facility could be inundated within the next one to two days if the water level continues to increase at the current pace. Junior engineer Anuj Singh confirmed that floodwaters have now reached the immediate surroundings of the existing substation....