"Where has the Congress' PM candidate gone? Should there be any such mysterious act in this manner. Sonia Gandhi had insulted (former Congress President) Sitaram Kesri. In similar manner, Rahul Gandhi has insulted Manmohan Singh, who headed their government for 10 years," BJP leader Tarun Vijay said.
Shiv Sena spokesperson Sanjay Raut also hit out at Rahul Gandhi, saying the Congress Vice President is behaving like a 'shehzada' (prince) as he is addressed by Narendra Modi.
AAP leader Kumar Ashutosh said that Gandhi's absence at the farewell dinner proves that "he is not ready to learn" to take "responsibility".
Jumping to Gandhi's defence, Congress, however, rubbished the allegations.
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"The question of insult does not arise. Rahul Gandhi is abroad and he has gone there after thanking the Prime Minister and taking his permission. This has been made clear," senior Congress leader Satyavrat Chaturvedi said.
AICC general secretary Digvijay Singh reminded that Gandhi's office had released a statement that the Congress Vice President had gone and called on the PM before going abroad.