Four days after a deadly three-train crash killed 275 people in India, a large number of bodies remain unclaimed.
At least 275 people were killed and more than 1,000 injured.
Railway Minister Ashwini Vaishnaw suggested signal failure led to the accident, citing a "change in electronic interlocking" that sent a train on to the wrong tracks.
The deadly collision on Friday evening is India’s worst rail accident this century.
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