Governor Tathagata Roy administered the oath of office and secrecy to the newly appointed ministers at Darbar Hall of the Raj Bhavan.
Khandu was sworn in as the Chief Minister on July 17, ending months of political instability in the hilly state.
The same day, senior Congress leader Chowna Mein was sworn in as Deputy Chief Minister.
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Those included in the cabinet on Wednesday include Tanga Byaling, Rajesh Tacho, Nabam Rebia, Honchun Ngandam, Wangki Lowang, Kamlung Mossang, Tapang Taloh, Kumar Waii, Takam Pario and Jomde Kena.
All of them were sworn in as cabinet ministers.