Eight students chosen to attend the 19th Asian Physics Olympiad in Hanoi, Vietnam, from May 5-13, called on President Maithripala Sirisena this week. They were presented with Rs 1 million for expenses. The students are from Sujatha Vidyalaya, Matara, Eheliyagoda MMV, Richmond, Galle, Royal College, Colombo, St Thomas' College, Mt Lavinia, Maliyadewa College, Kurunegala.