Salim is at the center and his position is 12th. This means there are 11 people to his left and 11 people to his right. Therefore, the total number of people in the row is 11 + 1 + 11 = 23. Ankita is at the 8th position from the right. To find her position from the left, we subtract her position from the right from the total number of people in the row and then add 1. This is because we need to account for Ankita's position itself. So, her position from the left is 23 - 8 + 1 = 16. Therefore, Ankita's position from the left side is 16th.