Tetulia is around 30 km away from Dhanbad and victims were watching a semi-final match of a football tournament at Tetulia Khel Maidan when lightning struck them twice, a police officer said.
The deceased were identified as Gopi Bhuiya (16), Akash Kumar (19) and Ashim Ansari (32), the officer said.
The injured were identified as Sanjay Bhuiya, Pramod Kumar, Shankar kumar, Ritik Kumar and Saurabh Rajwar, he said.
They were admitted to Nichitpur nursing home, he added.
Dhulu Mahto, MLA of Baghmara, Officer-in-charge of Sonardih police station RS Sharma and Officer-in-charge of Katras Police station Sushma Kumari went to the nursing home.
Mahto said he would talk to the chief minister for immediate payment of compensation to the families of the deceased persons.