The indigenous assault rifle developed by the Defence Research and Development Organisation (DRDO) of India is named "Ugram." The search results confirm that "Ugram" is an assault rifle designed and developed by DRDO in collaboration with a private industry partner to meet the operational requirements of the armed forces, paramilitary, and state police entities. The other options listed (Heckler, T91, and Tikka) are not associated with DRDO as indigenous developments.