Drona entered the arena. Drona worshiped the gods as a form of preparatory rites. Then he invited the brahmins to bless his disciples. After that the students gave gold, precious stones, clothes and other valuables to the teacher. The teacher blessed him. With this the demonstration started. Bhima and Duryodhana showed their skills in gaddha yudha by fighting with each other. The mock fight turned into a serious fight. Drona sent Ashwatthama to stop the fight because seeing this the citizens may get triggered by their fight. Then, Arjuna entered the hall with much appreciation and praises from the citizen of Hastinapura. He showed various archery skills to the people. Drona impressed by his beloved student Arjuna's skills then declared that Arjuna is the greatest archer in the world. Then, Karna gatecrashed and entered the arena and surpassed everyone's expectations and performances with the Permission of Drona. He then challenged Arjuna for a duel, Drona and Kripa started making excuses by questioning his lineage. Karna could not answer as he do not know who are his real parents. Duryodhana then made Karna the king of Anga. Then sunset occurred and the duel of Karna and Arjuna was stopped. Drona's Revenge After Drona completed the formal training of the Kuru princes, he demanded that they invade Panchala and bring him Drupada as their Gurudakshina. Arjuna succeeds in defeating Drupada and brings the captured king to Drona. Drona reminds Drupada about their days of friendship and his false promise before taking away half of the Panchala kingdom. Drona would make Ashwatthama the king of the annexed half of the Panchala kingdom. This action would lead Drupada to perform a sacrificial yagna in order to beget a son who would kill Drona. The sages Upayaja and Yaja helped him to beget such a son Dhrishtadyumna. The sacrificial fire also yielded a daughter, Draupadi. Weapons of Drona Droṇa received the Brahmastra from Parashurama. Parashurama imparted knowledge of celestial weapons to Drona along with the mantra of invocation and withdrawal of weapons. He had a huge range of weapons like Brahmastra, Brahmashira, Narayanastra, Rudra, Agneya, Vajra etc. Drona held the invincible sword of Brahma. Bhishma once told the story of this sword to Pandava prince Nakula. This sword was the primordial weapon created by the gods for the destruction of evil. The name of the sword was Asi, the personification and the primary energy behind