In a rare show of unity, India’s top telecom operators — Reliance Jio, Bharti Airtel, and Vodafone Idea — have written to the Mumbai Metro Rail Corporation Ltd (MMRCL), raising objections to its fresh tender for in-building solutions (IBS) on Metro Line 3 and warning of delays in restoring mobile connectivity.

The move comes after MMRCL terminated its earlier IBS contract with Saudi-based ACES and floated a new tender on March 20. In their letter, accessed by mid-day, the telcos flagged commuter inconvenience and said Reliance Jio has already applied for right-of-way (ROW) permissions to deploy infrastructure across stations and tunnels, with all operators backing a single-network approach.