Airports including Gaya, Varanasi, Lucknow and Gorakhpur recorded dense fog during the last three days, with visibility reducing to 0-50 metres in many areas. Vijay Kumar, the station house officer of Sohana, however, said that they have arrested the accused Harpalpur after the matter came to their knowledge and investigation was on. Over the last three years, with the expansion of the sand mining business, both legal and illegal, t. HomeCitiesKolkataCooch Behar on high alert after 2 die of Japanese EncephalitisCooch Behar on h. derick rose 6 Sounding an optimistic note, Shrestha, however, also said the recently signed Power Trade Agreement .