Sonowal, who became the first BJP chief minister of the state was sworn in by Governor Padmanabha Balakrishna Acharya. He took his oath in Assamese.
Along with Sonowal, 10 ministers including from alliance partners Asom Gana Parishad (AGP) and Bodo Peoples Front (BPF) also took their oath of office at the function which was also attended by BJP President Amit Shah.
The six from BJP to take oath as ministers were Himanta Biswa Sarma, Chandra Mohan Patowary, Ranjit Dutta, Parimal Suklabaidya, Pallab Lochan Das and Naba Kumar Doley.
Brahma and Daimari took their oaths in Bodo and Suklabaidya in Bengali while the rest, in Assamese.
Outgoing Congress chief minister Tarun Gogoi was also present at the function.
Other dignitaries present on the occasion were senior BJP leader L K Advani, Union Ministers Rajnath Singh, Nitin Gadkari, Suresh Prabhu, Ram Vilas Paswan, Venkaiah Naidu, Nirmala Seetharaman, Rajiv Pratap Rudy, Jitendra Singh, Jayant Sinha, Kiren Rijjiju and V K Singh.
BJP chief ministers Shivraj Singh Chouhan (Madhya Pradesh), Vasundhara Raje Scindia (Rajasthan), Anandi Ben Patel (Gujarat), Devendra Phadnavis (Maharastra), Manohar Lal Khattar (Haryana), Raman Singh (Chattisgarh), Raghubar Das (Jharkhand), Laxmikant Parsekar (Goa) were present. Also present at the function were chief ministers of alliance parties Prakash Singh Badal (Punjab) and Chandrababu Naidu of Telangana.
The swearing in ceremony was conducted by Assam Chief Secretary V K Pipersenia.
