The Indian india nanophotonic products market was valued at USD 188 million in 2026 and is projected to reach USD 670 million by 2036, recording a CAGR of 13.6% during 2027–2036. South India was the largest region in 2026 at an estimated ~37% share. The market centers on nanoscale engineering of light-matter interactions using patterned films, semiconductor junctions, photonic waveguides, near-field structures and light-emitting devices to deliver functionality in electronics, communications, sensing and solar optics.