Congress president Sonia Gandhi on Monday condemned the terror attack on Afghan parliament, calling it a "heinous attempt by fundamentalists to subvert democratic forces".
Expressing deep concern over a string of explosions in the Afghan parliament complex, she said such cowardly attacks by terrorists can never deter the democratic traditions gaining strength the world over.
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The Congress and indeed the entire country stood by the people of Afghanistan, she said in a statement.
Afghan Police said that all seven Taliban militants were killed in the attack that also injured over 20 civilians.