How to configure IN865 region in Chirpstack OS

I am using raspberry pi 3 and RAK2245 gateway (IN865), In chirpstack os in channel plan selection IN865 is not available. How can I configure it to IN865?

correct name of band is IN_865_867

Is it true for the Gateway Base image also?
For RAK2245 i only see 4 options: EU868, AS923,AU915,US915.
How do i set IN_865_867?

Just download gateway os of RAK2245 from RAK wireless site, you find all the countries bands.