Yash Highvoltage shares surged after ace investor Madhusudan Kela's firm bought nearly 14,000 shares. The company's board approved a preferential issue of up to Rs 151 crore to fund expansion, including enhancing its Resin-Impregnated Paper bushing manufacturing to 550 kV. This strategic move aims to bolster its position in the extra-high-voltage transmission segment and cater to growing demand.