Scientists at India's National Dairy Research Institute on Thursday said they have cloned the world's first buffalo calf using a technique superior to the one used in cloning 'Dolly' - the sheep.

In a statement, scientists of the Animal Biotechnology Centre at the Karnal-based NDRI said the 'hand-guided cloning technique' was an advanced modification of the 'conventional cloning technique' used in cloning Dolly.