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The Vedanta group firm Hindustan Zinc (HZL), which is the world's second-largest manufacturer of the metal, is planning to invest over $1 billion (about ₹8,270 crore) to convert its…

The masks are available online for purchase for Rs 800 to Rs 1,000 at presentCOVID-19 masks: Ever since the coronavirus pandemic disrupted the way things work last year, masks have become…

On the contrary, the new mask is four-layered cotton with a metallic mesh, which acts as an electrical filter. During inhaling and exhaling, the pathogens coming in contact with the mask…