4G appears to be available in India. However, your concern may not be a question of whether or not 4G is available in India, but of whether the Mobile Service Providers in India broadcast LTE at a frequency compatible with your L1020. Check the
official specifications of the L1020, particularly under Cellular Connectivity, and take note of the LTE Band frequencies. Then check with the service providers in India if they broadcast in at least one of those frequencies.
Even if the Mobile Service Provider says they have "LTE", if LTE isn't broadcasted at a frequency that isn't compatible with an LTE device, that LTE device won't receive LTE signals.
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