After holidays on the next two days, the House will sit again on September 21 and 22.
At least 30 Jharkhand workers, who went to Oman for work, are stuck there as their visas lapsed and they have no money to return home.
The house also expressed disagreement with Parliament on the issue of cancelling the nomination of representatives of Anglo-Indian community in the legislature.
Chief Minister Hemant Soren proposed Mahato's name for the post which was seconded by JMM MLA Champai Soren on the second day of the three-day session of the Assembly.
Chief Minister Hemant Soren took oath as Barhait MLA in Hindi. With this, Dumka Assembly seat, from where Soren was also declared winner, remains vacant.
Senior JMM MLA Stephen Marandi, who was named as pro-tem Speaker, will oversee the House proceedings till a regular Speaker is elected.
Concerned with shrinking vote bank in tribal areas, the state unit of BJP, in order to win back the confidence of tribals, is likely to project tribal MLA Neelkhanth Singh as leader of Opposition.
BJP is concerned with the shrinking support among tribals of the state.
The year also saw a string of incidents where helpless people were lynched by violent mobs on suspicion of petty theft and performing witchcraft.
Senior JMM MLA Stephen Marandi, who was named as pro-tem speaker, will conduct the first proceeding till a regular speaker is elected.
Of the 28 reserved scheduled tribe assembly constituencies, the BJP won only two compared to the 11 constituencies it won in 2014.
The Congress leader claimed that the Congress-JMM-RJD alliance could have won more seats if MIM had not contested the elections.
Earlier in the day, Hemant Soren was formally elected as the Jharkhand Mukti Morcha legislature party leader.
Party leaders feel that the BJP is not invincible and can be defeated if like-minded parties get together.
The percentage of the population being governed by the BJP in the states, either on its own or with its allies, now stands at around 43 per cent from over 69 per cent two years back.