The terrorists have been identified as Jangeer Rafiq Wani, Raja Umar Maqbool Bhat and Uzair Amin Bhat.
The encounter had broken out between the security forces and terrorists earlier today during checking of vehicles near the Bann toll plaza.
The security forces suspect that a total of three terrorists were moving in the truck. While one has been killed, the two other suspects have run away in the nearby jungle area.
An exchange of fire is currently underway between security forces and terrorists in Pulwama district's Tral in Jammu and Kashmir.
"I demand the culprits who committed atrocities on my daughter to be hanged or encountered. I want justice to be served quickly, the process should not take 10 years," the deceased's father told newsmen.
If you're going to shoot them before the due process of law has been followed, then what's the point of having courts, law and police?" Gandhi lambasted.
The four accused were arrested and were in judicial custody and lodged in high-security cells at Cherlapally Central Jail in Hyderabad.
"It is also something to be worried about, the way people have lost their faith in the criminal justice system. Together all the governments will have to take action on how to strengthen the criminal justice system," Kejriwal said
According to the police, When all the four accused were being taken to the scene of the crime, where the charred body of the doctor was found, they tried to escape and were shot at.
"It has been 10 days to the day my daughter died. I express my gratitude towards the police and government for this. My daughter's soul must be at peace now," says Disha's father