The 47-year-old actor, who is a Nepal national, took to Twitter to share that she was on her way to her home country to contribute in the relief work.
"First, it was earthquake and now it's floods... My heart sank with devastating news... I'm travelling to Terai with (the) UNFPA team... Hoping, praying to be of some use in this crisis..." Koirala wrote.
In 2015, Nepal was struck by a magnitude 7.9 earthquake, with its epicentre located at about 80 km north-west of Kathmandu, claiming over 7,000 lives and injuring 14,123 others.