Dronacharya Temple is a modest shrine, but it carries a name that matters. Gurugram means the village of the guru, and local tradition links the area with Guru Dronacharya, the martial teacher of the Pandavas and Kauravas in the Mahabharata.
Do not expect a major architectural sight. Visit it as a short old-city stop, especially if you are already seeing Sheetla Mata Mandir, and use it to understand the mythic layer beneath the modern city branding.