At the imminent incarnation of Lord Visnu as heir to king Dasaratha, Brahma gathered all the Devas and said "Visnu true to his word is valiantly going forth as man into the world of men for our cause. So we must provide forces to be with him and serve him. Create powerful sons whose bodies will have the might of lions and the speed of winds. Noble, intelligent, knowledgeble and equal in valor they should be indestructable. Resistant to hunger and thirst like them who have partaken of the nectar of the immortality, those invincible beings should be blessed with magical skills so as to take any form at will. I have already created Jambavan the best among the breed of bears. Ordered by Brahma the devas created the sons in the form of monkeys.Great Siddhas, Vidyadharas and Uragas produced heroic sons and wood-dwellers who used stones, trees and their own teeth and nails as weapons. Indra created Vali the king of vanaras and the Sun created Sugriva. Brihaspathi brought forth wise Tara, Kubera was responsible for Gandamadana, Viswakarma created Nala and the fire god begot Nila. The Aswini gods created mainda and Dvivida, Varuna and Parjanya created Susena and Sarabha respectively. Vayu produced the invincible Hanumanwhose courage, wisdom and strength matched his diamond hard body, while he speed matched to that of Garuda.Thousands of warriors who could shatter the earth with their feet, make mountains shudder and torment the very oceans across which they could leap appeared. Their booming voices as they roamed the forests, mountains along river banks and sea shores made flying binds plummet in fright.The earth teemed with them who wanted to assist Rama they came into existence lofty as mountain peaks with fearful body and matchless strength.