India, May 19 -- Commercial vehicle drivers' unions in Delhi-NCR have announced a three-day strike from May 21 to 23, demanding an immediate revision in taxi and auto fares amid rising fuel prices and increasing operational costs.

The "Chalak Shakti Union" submitted a memorandum to the Delhi Lieutenant Governor, Chief Minister, Transport Minister and Police Commissioner, extending support to a nationwide protest call by the All India Motor Transport Congress.

The unions said taxi fares in Delhi-NCR have remained unchanged for nearly 15 years despite repeated hikes in CNG, petrol and diesel prices, along with rising maintenance, insurance and permit costs.

Union leaders warned that if the government fails to revise fares within the next...