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Finnish telecom gear maker Nokia has bagged a pan-India deal from Bharti Airtel Ltd to deploy a next-generation optical transport network that will enhance the telecom firm's bandwidth multifold. According to sources aware of the deal, the data transmission capacity of a core network layer of Bharti Airtel that sends data from one city to another will double and its optical fibre network capacity to transmit data will grow up to four times from the current capacity. "As part of the agreement, Airtel will utilize Nokia's 1830 PSS-x OTN switches in its National Long-Distance Network connecting major cities across India," Nokia said in a statement. The technology will help the Airtel network from disruption caused by optical fibre cable damage as the transport layer will reroute the traffic through other cable links. "The launch of 5G networks and the push for broadband connectivity across India is increasing demands for Communications Service Providers (CSPs), including augmentation