The flood situation in Assam improved marginally as the number of people reeling under the deluge in 27 districts decreased to around 18.80 lakh, officials said on July 9. The affected population was 18,80,700 in 27 districts as compared to almost 22.75 lakh people suffering from the deluge on Sunday, the officials said. Dhubri with nearly 4.75 lakh people reeling …