Varanasi: A scientific study has revealed that Delta variant of coronavirus predominates in Varanasi. The Banaras Hindu University (BHU) and the CSIR-Centre for Cellular and Molecular Biology (CCMB), Hyderabad have collaboratively sequenced genomes of coronavirus variants in Varanasi and adjoining areas. Their study reports at least seven major strains of coronavirus circulating in this region. The Multidisciplinary Research Unit, headed by Prof. Royana Singh at BHU, collected samples from Varanasi and areas around the city, mostly in April 2021. The team at CCMB sequenced these samples and found out that there were at least seven major variants circulating in the region. As many as 130 samples were sequenced in this study.