Having said that, I know companies in Europe that offer LAN-based connectivity between two offices, which are located in the same city. For this, they have special networks in place. In this solution, you just need two switches at both offices. But I doubt if MTNL/BSNL have started offering any such service. It would be better if you ask them about it. But with traditional leased lines, what you are saying is not possible.
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