In a letter to Russian President Vladimir Putin on Monday, Dr. Singh termed the attacks as unconscionable crime against humanity.
"On behalf of people and Government of India and on my personal behalf, please accept our deepest condolences on the loss of lives and injuries in these ghastly attacks. Our prayers go out to families of all the victims," Dr. Singh said in the letter.
"India strongly condemns these terrorist strikes against innocent civilians. These attacks are a grave violation of human rights and an unconscionable crime against humanity. We stand resolutely together with the people of Russia in the face of these horrible acts of terrorism," Dr. Singh wrote to Putin.
According to reports, at least 14 people were killed on Monday when a suicide bomber blew himself up on a trolleybus in Volgograd.
--ANI (Posted on 31-12-2013)