Trinamool Congress Mamata Banerjee sworn in as the chief minister of West Bengal for the second consecutive time along with 42-member ministry
Mamata Banerjee was administered oath of office and secrecy by state Governor Keshri Nath Tripathi
Venue: Kolkata 
Mamata Banerjee included 18 new faces in the cabinet – Suvendu Adhikari, Sobhandeb Chattopadhyay, Churamoni Mahato, Tapan Dasgupta, Asima Patra, Indranil Sen, Laxmi Ratan Shukla, Shyamal Santra, Golam Rabbani, Siddikullah Chowdhury, Abdur Rezzak Mollah, Jakir Hossain, James Kujur, Rabindra Nath Ghosh, Sandhyarani Tudu, Abani Joardar, Bachchu Hansda and Sovan Chatterjee – Mayor of Kolkata
Delegates: Bhutan Prime Minister Tshering Tobgay, Bangladesh Industry Minister Amir Hossain Amu, Union Ministers Arun Jaitley and Babul Supriyo, Delhi Chief Minister Arvind Kejriwal, Uttar Pradesh Chief Minister Akhilesh Yadav and Rashtriya Janata Dal chief Lalu Prasad.
- First Chief Minister role taken by Mamata Banerjee in 2011 when she led an alliance of Trinamool Congress, Congress Socialist Unity Centre of India – Communist against Left Front Rule
- Second time consecutive won in 2016 election by Mamata Banerjee lead the Trinamool Congress with 211 out 294 seats which is two thirds majority mark
The Congress-Left Front alliance won only 77 seats in the 294-member seats