s-k, you have any mistakes here:
for (i in 1..1) ****(only 1 until 1 its give 1 time)
println(originalList[i]) ****(its is out of for statment {})
one ajustment suggest is :
fun main(args: Array<String>)
{
val originalList = arrayOf("sathish", "ramesh", "kumar", "rajesh", "ram", "kom")
for (i in 0..(originalList.size - 1)) {
var t: Int = ((Math.random() * originalList.count()).toInt())
println("Num $i : $t -> ${originalList[i]}")
}
}