This question refers to one of the most famous and philosophically rich episodes in Hindu literature, a conversation that takes place just before a great war.
Step 1: Understanding the Question
The question asks to identify the specific Hindu text that contains a dialogue about duty (Dharma) and ethics set on the Kurukshetra battlefield.
Step 2: Detailed Explanation
The Bhagavad Gita ("The Song of the Lord") is the scripture that fits this description perfectly.
It is a 700-verse text that is part of the epic Mahabharata.
The setting is the battlefield of Kurukshetra, where the Pandava and Kaurava armies are arrayed for battle.
The central dialogue is between the Pandava prince Arjuna, who is in a state of moral crisis about fighting his own relatives, and his charioteer and divine guide, Lord Krishna. Krishna's counsel to Arjuna on duty, action, and the nature of reality forms the core of the text.
Step 3: Final Answer
The Hindu scripture focused on this battlefield dialogue is the Bhagavad Gita.