Likha Saaya has joined my team of legislators, Pul said in a statement.
With this, the Pul camp has 20 legislators including himself with two Independents and 11 BJP MLAs supporting it from outside in the 60-member house.
The Chief Minister claimed that 12 more MLAs were expected to support him for a strong and stable government in the state.
Some more MLAs were kept under pressure, he said.
On Tuki's allegations that his government was unconstitutional, Pul said "The government can never be unconstitutional. One who has the required magic number forms the government."
His swearing-in came a day after the Supreme Court vacated its interim order to maintain status quo in the Arunachal Pradesh Assembly.
