ask your seniors at home buddy... U will come to know, its in the last chapters of ramayan
here it is
A king of a small country by name Sakuntan was returning on his way from hunting. He saw a place where the sages Vasishta, Viswamitra, Atri and others performing a yagna. Thinking that it would not be appropriate to enter the sacred place when he returned from hunting covered with sweat and blood, ge stood outside the entrance, raised his arms above his head and said, "My salutaions to the great sages like Vashishta." Devarishi Narad instigated Rishi Vishvamitra that King Sakuntan deliberately ignored him (Viswamitra) and the sage extracted a promise from Ram that Sakuntan's head will be at Sage Viswamitra's feet by sunset that day.
Sage Narad further went to Sakuntan and told him about Lord Ram's promise and adviced him to take shelter from Anjana Devi. Anjana Devi in turn summoned Hanuman and left Sakuntan in his care. Hanuman built a fort around Sakuntan with his tail and sat on top of it meditating on Lord Ram's name.
Ram, finding the fort sent forth his arrows but those arrows returned to his feet. While he stared perplexed at this phenomenon, Sage Narad explained that Hanuman protects Sakuntan with the name 'Ram'.He also says that, "Against your name, even you cannot do anything." Rishi Viswamitra says that all this was the result of his ego and he won't pursue it anymore. When Lord Ram is worried about his promise going in vain, Devarishi suggests that Sakuntan bows to Sage Vishwamitra so that his head touches the Rishi's feet. Sakuntan does so and all ends well.
In 'Jai Hanuman', the only deviation was when Ram took his own arrow in the end, Hanuman cries out saying that a Raam baan should never go waste and then someone interferes and suggests that Sakuntan should bow down to Sage Viswamitra's feet
