Petha winter melon is also known as parangikai, kadu, pumpkin white, petha,winter melon. Pumpkin looks like a round shape, slightly ribbed skin and most often deep yellow to orange in coloration. Pumpkins are widely grown for commercial use and are used both for food and recreation. Pumpkins, like other squash, originated in northeastern Mexico and southern United states. You can find pumpkins that are green, yellow, white, red, blue even tan.