Amid growing crisis in ruling Congress in Punjab, BJP today said the stability in the border state is essential for national security. Talking to media in New Delhi, party spokesperson, Sambit Patra expressed concern over the situation and said the Congress has become synonymous with instability. He questioned the Congress leadership alleging that the entire episode has brought to fore the colossal failure of Rahul Gandhi.<br />'' <br />''<span style="color: #222222;">Mr Patra said the whole India is watching the politics of Congress. He added that senior Congress leaders like Manish Tewari have also expressed their concern over the situation in the state. </span><br />