In a significant development for the Kolkata Metro, the authorities have replaced the steel third rail with an aluminum one at the Maidan siding. This change is expected to enhance the efficiency and safety of the metro system. The aluminum rail is lighter, corrosion-resistant, and requires less maintenance compared to its steel counterpart.

Officials stated that this upgrade aligns with modern engineering practices and aims to improve overall operational reliability. The decision reflects a commitment to adopting advanced technologies that can lead to better performance and sustainability within the metro network.

The Maidan siding is an essential part of the Kolkata Metro, and this enhancement is seen as a positive step towards the ongoing modernization efforts of the city's transportation infrastructure.