[Q] [q] htc d816d one max unlock bootloader/root/cwm/unlock cdma network for india topic

HTC d816D IS A DUAL SIM CDMA + GSM DUAL SIM HANDSET IN LAUNCHED IN CHINA .
My Questions are :
Can I use it in India directly or I have to do some fixes in this.
How to install custom recovery , gapps and install roms in this .
How to root this .
How to turn off OTA updates in it . or block ota.
How to unlock cdma network so that I can use any CDMA and GSM sim in it in India.

As I am a beginner I want all your suggestions and help in learning Android Development for Imported CDMA/GSM Handsets .

All members valuable suggestions are welcome.

Thanks in Advance .