Amid indications that he may be appointed the party's prime ministerial candidate at the AICC meeting Friday, Congress vice-president Rahul Gandhi has said that he will discharge future responsibilities given to him by the party with sincerity.In an interview to Dainik Bhaskar newspaper published Tuesday, Rahul Gandhi said the Congress should return to power in the 2014 Lok Sabha elections "in the interest of the country"."We are a democratic organisation and we have faith in democracy. People of India would choose who will be their prime minister through their elected representatives," he said."In national interest, it is necessary that Congress comes to power (at the centre). And, for that, whatever responsibility organisation has given me or will give to me in the future, I will discharge it with all my sincerity," Rahul Gandhi said.There have been suggestions from within the party that Gandhi should be appointed the prime ministerial candidate for this year's Lok Sabha polls.Information and Broadcasting Minister Manish Tewari Tuesday said that Rahul Gandhi was "natural leader" of the Congress.To another query, Gandhi said the Congress was a dynamic organisation and added that he differed with many of the ways adopted by the Aam Aadmi Party."Our decisions in people's interest should not be for short term gain but to protect their future," he said.