What arge Island is located directly south of India?
Sri Lanka is 31Kms off the southern coast of India
The most richest sri lankan in the world?
Since Sri Lankans are present in many countries, the definition of ''Sri Lankan'' itself is up for debate. If you mean a Sri Lankan in an official sense, its probably Harry Jayawardena. If you mean a person with Sri Lankan roots/origin, it probably is not. Its not as simple as long ago during the times of CH de Soysa or Sir Ernest de Silva when the richest Sri Lankan probably was situated in Sri Lanka.
What is the poorest country of India Sri Lanka Nepal Bangladesh Pakistan Afghanistan and Bhutan?
bhutan
What is mom called in sinhalese?
It's pronounced like Um-May. I don't know how you would literally spell it in English.
Where does the name ceylon come from?
The natives called the island "Sihalam". The Romans called the island "Sielen" and "Selan". From this, the name was Anglicized to "Ceylon".