In a factory 1,000 workers were idle because of a power failure. As a result, a loss of production of 2,000 units of Product X and 4,000 units of Product Y occurred. Each employee was paid a normal wage at the rate of Rs. 100 per hour. One standard hour is required to manufacture five units of Product X and four units of Product Y. How much is the Idle Time Variance due to power failure?