The Congress on Monday took a swipe at the BJP over former Karnataka Chief Minister Jagadish Shettar crossing over to it ahead of the May 10 Assembly elections, claiming the ruling party is "falling like a house of cards".

Shettar joined the Congress in Bengaluru in the presence of AICC president Mallikarjun Kharge, general secretaries K C Venugopal and Randeep Singh Surjewala (Karnataka in-charge), KPCC president D K Shivakumar and Legislature Party leader and former chief minister Siddaramaiah, among others.