<p><br />Heavily-armed NDFB ultras fired from AK-47 rifles on a group of people near Naharani tea estate at Rangapara in central Assam's Sonitput district at 9.30 am killing the four, police said.</p>.<p>Besides the two women, a man and a boy of the same family were shot dead by the militants.</p>.<p>The injured have been rushed admitted to a Tezpur hospital, while the police have launched a combing operation to apprehend the killers.</p>.<p>Police believe the killing could be in retaliation against stepped up operation against the NDFB by security forces with over 30 militants killed in the last one month.</p>
<p><br />Heavily-armed NDFB ultras fired from AK-47 rifles on a group of people near Naharani tea estate at Rangapara in central Assam's Sonitput district at 9.30 am killing the four, police said.</p>.<p>Besides the two women, a man and a boy of the same family were shot dead by the militants.</p>.<p>The injured have been rushed admitted to a Tezpur hospital, while the police have launched a combing operation to apprehend the killers.</p>.<p>Police believe the killing could be in retaliation against stepped up operation against the NDFB by security forces with over 30 militants killed in the last one month.</p>