The Himalayan orogenic belt represents one of the youngest continent-continent collisional orogenic belts and the collision is still an ongoing process. Eclogites in the Greater Himalayan Crystalline complex contain important information about subduction and exhumation processes of the Indian plate. In this paper, we investigate the petrology, whole-rock geochemistry and zircon chronology of retrograde eclogites in the Nyönno Ri region, Central Himalaya. The objective of our study is elucidate the metamorphic evolution, nature of protolith and tectonic setting of these rocks. The eclogites are enclosed within granitic gneisses and occur as lens or bands. Three metamorphic stages are identified with different mineral assemblages:① peak eclogite-facies:garnet, omphacite, polysilicate muscovite, rutile, and quartz; ② high-pressure granulite-facies:symplectite of clinopyroxene and plagioclase, and symplectite of biotite and plagioclase; and ③ amphibolite-facies:amphibole in the matrix. Zircon grains of the peak eclogite-facies stage has an age of ~15.5~14 Ma and have chondrite-normalized REE patterns with flat HREE and without negative Eu anomalies, whereas zircon grains of the granulite-facies stage have an age of ~12 Ma and show significantly enriched HREE and negative Eu anomalies, indicative of garnet breakdown and plagioclase growth. From the mineral thermobarometry, the peak metamorphic conditions are estimated to be ~730℃ and 1.9~2.1 GPa. The eclogites have a clockwise metamorphic p-T path with the peak eclogite facies metamorphism followed by the near-isothermal rapid decompression, then the granulite-facies metamorphism. The final metamorphism was cooling and decompressing under the amphibolite-facies conditions. The eclogites in the Nyönno Ri region were formed from protoliths of alkaline basalts geochemically similar to mid-ocean ridge basalts (MORBs). Relict magmatic core of zircon grains has a protolith age of 890~850 Ma. In summary, we suggest that the eclogites in the Nyönno Ri region formed from Neoproterozoic MORBs that were subsequently subducted and metamorphosed under the eclogite-facies condition beneath the Eurasian continent at ~15.5 Ma, followed by exhumation.