This brave young boy knew the secret of entering a 'chakravyuooh' or a battle formation based on encirclement but did not know how to get out of it. In the battle fought at Kurukshetra, he fought endlessly and when Guru Dronacharya saw that he was unbeatable, he ordered the Kauravas to break his bow and then smash his chariot from behind. Name this daring boy.

Abhimanyu is the correct answer. He learned the secret of entering the chakravyooh (wheel formation) while in his mother Subhadra's womb but did not learn how to exit it. During the Kurukshetra war, he entered the formation and fought bravely until he was trapped and killed by the Kaurava warriors, following Dronacharya's strategy. The other options are not the character associated with this tragic story.