With reference to the revolt of the year 1857, who of the following was betrayed by a friend; captured and put to death by the British?

The correct answer is Tantia Tope. After the fall of Gwalior, Tantia Tope escaped into the jungles of central India and continued a guerrilla war against the British. He was eventually betrayed by his trusted friend Man Singh, the Raja of Narwar, who informed the British of his whereabouts while he was sleeping. Based on this information, the British captured Tantia Tope in April 1859. He was subsequently tried by a military court and executed at Shivpuri. In contrast, Nana Sahib escaped to Nepal and his fate remains unknown. Kunwar Singh died of injuries sustained during battle. Khan Bahadur Khan was captured after the fall of Bareilly and executed, but his capture was not the result of betrayal by a close friend in the same historical context as Tantia Tope.