Unable to upgrade to marshmallow

I have unlocked bootloader phone. I was able to install the stock rom of Indian version, but now i can't perform OTA updates. It always fail. Below the version of Firmware installed.

X_Play_Retail_India_XT1562_LPD23.118-10_CFC.xml

Please give me suggestions regarding this. Help on this is highly appreciated.

from xda-developers http://ift.tt/2djLeo8
via IFTTT