Indian Institute of Remote Sensing (IIRS), Dehradun, introduces a novel algorithmic method for enhancing Digital Elevation Models (DEMs) using InSAR (Interferometric Synthetic Aperture Radar) data. The method leverages SAR coherence and phase values to selectively improve elevation data from multiple InSAR pairs. It involves the generation of DEMs, selecting the best elevation values based on coherence, and refining them to match Survey of India (SOI) Toposheet elevations.