Bindi, Moni, Saya, Arjun, Himesh and Pankaj are six different friends, each of a different age, Bindi is younger than Moni but older than Saya. Arjun is younger than only one person. Himesh  is older than Pankaj but younger than Moni. Saya is older than Pankaj but younger than Bindi. Who among the six is the youngest?