GURUGRAM, Oct. 23 -- Power supply has been restored to many parts of Gurugram following widespread blackouts triggered by a strike by state power department employees against a regulatory order granting a 25-year parallel distribution licence to a private firm in Gurugram and Nuh, district officials said on Friday.

Several residents, however, complained that despite the restoration, the supply was suffering from severe low voltage, leaving them unable to operate household appliances or run water pumps.

Power grid workers and engineers have been on a 72-hour strike starting 10 pm Wednesday to protest an order by the Haryana Electricity Regulatory Commission (HERC) granting a 25-year parallel distribution license to a private firm, Eleven...