Defying the Maoist boycott call, voters queued up in large numbers at polling stations since morning to caste their votes.
According to Election Commission, the polling per cent was 62.87 per cent. The highest polling 67.04 per cent was recorded at Bishnunpur and the lowest 57.61 per cent at the Manika seat.
Minor clashes were reported between workers of the Bharatiya Janata Party (BJP) and the Congress in the Daltanganj Assembly seat. Congress candidate K.N. Triptahy waved his licenced revolver in the air after he was stopped from entering a polling booth.
The Election Commission has sought report on the incident and has cancelled his licence.
The 13 seats that went to polls are Chatra, Latehar and Chattarpur (reserved for SC), Gumla, Bishunpur, Lohardaga, Manika (all ST seats), Panki, Daltonganj, Bishrampur, Hussainabad, Garhwa and Bhawnathpur.
Of the 37,78,963 voters, 19,79,991 were men, 17,98,966 women and five belonged to the third gender. 189 candidates are in the race, including 15 women. A maximum of 28 candidates were in Bhawnathpur, and a minimum of nine in the Chatra seat.
According to Election Commission, of the 4,892 booths in the first phase, 4,585 were located in rural areas and 307 in urban areas. Of this, 121 were Sakhi booths and 417 model booths. In the first phase, webcasting facility was provided at 1,262 booths.
Heavy security arrangements had been made for polling. Helicopters were used for airlifting and dropping of the poll officials in difficult terrain and Maoist-hit areas.
The important candidates, whose fate will be decided in the first phase, include Jharkhand Health Minister Ramchandra Chandravanshi, Congress state chief Rameshwar Oraon and former Minister and BJP candidate Bhanu Pratap Shahi.
The BJP is fighting 12 seats and supporting Independent on one seat. The Jharkahnd Mukti Morcha (JMM), the Congress, the RJD fighting poll in alliance have fielded candidates in four, six and three seats, respectively.
( With inputs from IANS )