Who are Loki's three children?
Fenrir
In chapter 34, High describes Loki, and says that Loki had three children with a female named Angrboða located in the land of Jötunheimr; Fenrisúlfr, the serpent Jörmungandr, and the female being Hel. High continues that, once the gods found that these three children were being brought up in the land of Jötunheimr, and when the gods "traced prophecies that from these siblings great mischief and disaster would arise for them" the gods expected a lot of trouble from the three children, partially due to the nature of the mother of the children, yet worse so due to the nature of their father.
Lalji Verma
Verma is married to Shobhawati Verma and has one son, Vikas Verma, and two daughters, Akanksha Verma, and Dr. Chhaya Verma.
His son Vikas Verma committed suicide on March 14th, 2018.