This dazzling firecracker of a bird is a male. Females are yellow and gray. This species was split by Mayr (1940) from the similar Short-billed Minivet (P. brevirostris). Both overlap in parts of SE Asia. Note double-pronged red wing slash including the tertials. The tertial prong is lacking in Short-billed. Seven subspecies are usually recognized. This is presumably P. e. favillaceus which is a winter visitor to the lowlands of NW India from China and the Himalayas. It differs from other races by its longer tail and bill and paler red color. The name Minivet was apparently first applied to these birds by Edward Blyth, but the etymology of this name appears to be unknown (OED). Canon PowerShot SX50 HS.
References:
Mayr, E. (1940) Pericrocotus brevirostris and its double. Ibis (14)4:712-722.
Rasmussen, P.C. & Anderton, J.C. (2012) Birds of South Asia. The Ripley Guide. Vols. 1 and 2. Second Edition. Smithsonian Institution. Michigan State University & Lynx Edicions, Washington. D.C., Michigan & Barcelona.
Taylor, B. (2016). Long-tailed Minivet (Pericrocotus ethologus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/57910 on 10 October 2016).