Complex sentence: The most prominent advocate for the creation of the new state is Ajit Singh, leader of the Rashtriya Lok Dal party and is supported by various Muslim groups, as Muslims would form a significantly higher proportion of the population than in Uttar Pradesh.
Split into simpler sentences: The most prominent advocate for the creation of the new state is Ajit Singh, leader of the Rashtriya Lok Dal party. This prposal is also supported by various Muslim groups, as Muslims would form a significantly higher proportion of the population than in Uttar Pradesh.