The All India Muslim Personal Law Board (AIMPLB) on Thursday rejected the Law Commission's questionnaire on the Uniform Civil Code and decided to boycott it.
The board's move comes days after the union government told the Supreme Court that triple talaq, 'nikaah halaal' and polygamy were not integral to the practice of Islam or essential religious practices.
"Uniform Civil Code is divisive and will lead to social unrest," said the AIMPLB General Secretary, Maulana Wali Rehmani.
"It is against the spirit of the Constitution, which safeguards the right of citizens to practice their culture and religion," he told the media.
"Uniform Civil Code is not good for this nation. There are so many cultures in this nation and they have to be respected."
Jamaat-e-Islami Hind (JIH) President Maulana Arshad Madni, who was also at the briefing said, "The Muslim Personal Law is based on Quran and Hadith and we cannot alter it," adding that Prime Minister Narendra Modi wanted to "impose dictatorship in the name of democracy".