Bihar Chief Minister Nitish Kumar, who has lost his cool more than once while campaigning for the state elections in the last few days, was targeted by his ex-deputy chief minister Tejashwi Yadav this morning in his latest tweet. The RJD leader's jibe on social media came a day after Nitish Kumar attacked Tejashwi Yadav and his father - Lalu Prasad Yadav - at a rally in Begusarai as he said: "Ask your father or mother if they (Mr Yadav's parents) made any schools or colleges when they had the chance... or kept on making ill-gotten profits".