Unidentified militants shot dead a lawyer in Srinagar on Thursday, police said, the second political or social activist to be killed within a 24-hour period.
The ultras fired upon advocate at his Hawal residence around 6.25pm from close range before fleeing the spot, a police official said.
Qadri, in his early 40s, was rushed to the SKIMS hospital, where doctors declared him 'dead on arrival', according to the official.
The advocate, who used to appear on TV debates and write opinion pages for local newspapers, was not liked by the separatist circles.
Three days ago, he had tweeted a screenshot, urging the police in Jammu to register an FIR against a Facebook user for spreading "wrong campaign" against him.
"I urge the state Police administration to register FIR against this Shah Nazir who has spread wrong campaign that I work for agencies. This untrue statement can lead to threat to my life," Qadri had written in his last tweet.
Qadri's killing comes a day after Bhupinder Singh, a member of the block development council in Khag area of Budgam district, was shot dead by militants at his ancestral Dalwash village on Wednesday night.
The National Conference, Peoples Democratic Party and the Peoples Conference condemned the killing.
"The assassination of Babar Qadri this evening is tragic & I unequivocally condemn it," NC vice president Omar Abdullah tweeted. "The sense of tragedy is all the more because he warned of the threat. Sadly his warning was his last tweet."
In a statement, the party demanded that the killers of the young advocate be brought to book and "justice delivered in the murder case immediately".
"JKNC unequivocally condemns the dastardly killing of young activist Adv Babar Qadri," it said. "The party expresses heartfelt condolences with the bereaved family."
In a tweet, the PDP "vehemently" condemned Qadri's killing, saying "mournings are a constant feature in every Kashmiri's life".
Peoples Conference leader Sajad Lone said Qadri was yet another victim of conflict.
"One more Kashmiri falls to bullets," he tweeted. "My thoughts with the family."
