Birds of a feather flock – and nest – together. Altamount Road, the SoBo Billionaires’ Row that’s home to Mukesh Ambani, appears to have company in India’s other metro cities, such as Bengaluru and Delhi-NCR, for the uber-rich tech and startup czars to stay connected and network with one another – from the comfort of their drawing rooms or gyms and club houses for that matter. In Bengaluru…