This is a highly emotive issue. While the Sharia is technically the sole legal authority for practising Muslims, yet there is no denial that is no codified in modern legal terms and is left to the interpretation of the Maulana. The Muslim Personal Law is somewhat codified or so it is said. The unfortunate part is that the fatwas given by the Maulanas are contrary to the criminal and civil procedures that are prevalent in the country. It is said that fatwas are merely opinions and not diktats or judgement. That may be true, but it also has the fear of social otracisation or even bodily harm by the more fanatical adherents of the religion. In sum total, it becomes mandatory to obey that fatwa. That apart, the fear is that other religious group can now claim (and India is getting very irrational) that their religious codes be dictated by their religious scriptures. Already there is the spat between the Sankaracharya and the Sai devotees! Then the Christians will want their religious codes be as sanctified by the Bible. And so will start the chaos. I thought that the Muslim and other Personal Laws were there, and the Legally Constituted courts interpreted these laws and gave the judgement.