A new-born Royal Bengal tiger cub died at the Kamla Nehru Zoo here today.
"The hind-limbs of the cub were paralysed and with the angry mother refusing to suckle him, his condition worsened," Uttam Yadav, in-charge of the zoo, said.
Four days back another cub from the same mother died.
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She attacked the cubs when they tried to suckle, he said.
Authorities fed cow milk to the cubs, but could not save two of them. The condition of the third cub too is serious.