The prime minister's foreign visits are part of his constitutional duty to strengthen India's ties with other countries, said senior BJP leader Sushil Kumar Modi.
Attacking Kumar, he said the Bihar chief minister had made the "distasteful remarks" against Narendra Modi yesterday "out of frustration over the buzz about his visit to Bihar soon".
"The chief minister's caustic remark against the prime minister also points to the fact that he nurses personal animosity towards Narendra Modi.
Kumar's remarks against the prime minister was due to his association with RJD chief Lalu Prasad and Congress, Sushil Kumar further charged.
More From This Section
"Is it not a constitutional duty of the prime minister to strengthen India's bilateral relations with other countries?" he asked while charging Kumar with adopting double standards on the question of foreign visit by leaders.
Sushil Kumar asked the chief minister whether he had questioned Congress Vice-President Rahul Gandhi for his nearly two month-long sabbatical in a foreign country earlier this year. He also wondered what Gandhi had done during his visit abroad.