We are running our commercial LoRaWAN network in New Zealand using the 865 to 867 MHz KotahiNet. We've learnt many things and are happy to share with people looking to operate in a non-standard frequency band.
On the gateway side, it's been straightforward as it is only a matter of configuration. On the end node side, only LoRa modems or modules that are not locked to default EU 868 frequencies can be used. Our best experience has been with Microchip, IMST and SODAQ.
I'm interested to help you build community networks, especially in India, so happy to answer any questions about our experience with the 865-867 MHz band.