Sundram Fasteners' operations at its units in Korkadu village, Puducherry, and Mittarnandagapet village, Villupurain District, Tamil Nadu, have been disrupted due to the recent cyclone Thane. All the assets at the above units are adequately insured, said the company in a notice to the Bombay Stock Exchange. The company expects to restore normal operations in stages over a period of two weeks.