Just as a wave hits the shore and retreats, a strong roll of advancing water bounces over it. The noisy overlap is symbolic of two Goan leaders who, till recently, belonged to the same political camp. Their friction divided the ruling BJP in the tiny coastal state: a breakaway faction led by former RSS chief Subhash Velingkar is a party since last October. His Goa Suraksha Manch is now with the Shiv Sena and the Maharashtrawadi Gomantak Party ahead of the February 4 assembly election. This has worked against Velingkar’s protégé Manohar Parrikar, the defence minister with the NDA government. The two often spar.