Step 1: The clues are "camel trading" and "Kartik Purnima" (full moon of the Kartik month, around October–November). Step 2: The Pushkar Fair is held at Pushkar in Ajmer district around Kartik Purnima. Thousands of camels and cattle are traded, and pilgrims bathe in the holy Pushkar Lake. Step 3: Gangaur is celebrated in Chaitra (March–April), Teej in Shravan (monsoon), and the Beneshwar fair is a tribal fair held in Magh (Jan–Feb). Answer: Pushkar Mela.