India, Dec. 23 -- Rahul Gandhi's remarks alleging "vote theft" during a speech on Monday in Germany have sparked a political controversy back home, with the Bharatiya Janata Party (BJP) accusing the Congress leader of undermining India's democratic institutions on foreign soil.

The BJP hit out at Rahul Gandhi for reiterating allegations of electoral manipulation abroad, calling his comments irresponsible and anti-national.

Speaking at an event in Berlin on Monday, the Leader of Opposition claimed there was a "full-scale assault" underway on India's institutional framework, ANI reported.

Addressing a lecture at the Hertie School, Gandhi repeated his allegations of irregularities in elections conducted under the BJP-led government.

Gand...