The 10-year-old boy died on the spot, while Vikram and Sandeep were rushed to the Post Graduate Institute of Medical Sciences in Rohtak. Vikram was declared brought dead.
Meham DSP Prithvi Singh rushed to the spot with heavy police force.
Police said the condition of Sandeep was critical and further action would be taken after recording his statement.
Sources said the accused belonged to the same village and had been harbouring an old enmity with the victims.
Heavy police was deployed in and around the village to restore normalcy.
Madina is the native village of Meham Congress MLA Anand Singh Dangi.