PSLV`s Vikas Engine: An unfailing tribute to Dr Vikram A Sarabhai

India’s Polar Satellite Launch Vehicle (PSLV) rocket, is undoubtedly among the most successful and consistent rockets in the world among the sub-1.5ton payload to Low-earth orbit or polar orbits. But one lesser-known facet beyond the enviable success rate of this rocket is its second-stage engine - Vikas.