Politics, it has oft been noted, makes strange bedfellows. India’s hyper-competitive telecom market is no different. Why else would long-time rivals Mukesh Ambani and Sunil Mittal join hands to share infrastructure? That was the question on everyone’s mind when last week, Mittal’s Bharti Group and Ambani’s Reliance Jio Infocomm inked the most definitive infrastructure-sharing agreement in India’s telecom history.