Unable to connect my YU yuphoria on USB mass storage mode on windows 7

USB mass storage options not showing in my YU YUPHORIA.
Unable to connect it on windows as usb .please help


Phone details:
Model no :YU5010A
Android version:5.1.1
Baseband version:1-0004-M8936FAAAANVZM-1.18825.1
Kernel Version :3.10.49-g57b68c3 Wed Sep 23 12:28:16 CST 2015
Build Number: YU_YU5010A_SW_V007_HW_M21_23092015

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