New Delhi, July 20 : Samajwadi Party Rajya Sabha MP Shahid Siddiqui''s defection to the Bahujan Samaj party (BSP) just three days before the crucial trust vote in the Lok Sabha, has left Muslim community leaders dismayed.

Criticizing Siddique for his political about turn and his use of his opposition to the India-US civilian nuclear cooperation deal as a tool, the Muslim leaders are of the unanimous view that he has communalized the deal issue.