Raymond Ltd., one of the world’s biggest producers of suit fabric, fell for the seventh day in Mumbai as the acrimonious separation between its billionaire chairman Gautam Singhania and his wife sparked uncertainty among investors.The stock has tumbled 12 percent since Nov. 13 when Singhania announced separation from Nawaz Singhania, his wife of 32 years and a Raymond board member, erasing more than $180 million in market value. The shares fell as much 4.4 percent on Wednesday, set for the biggest drop since Oct. 25.The Economic Times reported late Monday citing people in the know that Nawaz has sought 75 percent of Singhania’s $1.4 billion fortune as part of a settlement. A representative for the Raymond Group didn’t immediately respond to an e-mail seeking comment.“Uncertainty around the separation is weighing on the stock. Nobody knows what kind of impact it will have on the company,” said Varun Singh, an analyst at ICICI Securities Ltd. “Since the wife is a board member, this has become a corporate governance issue.”Singh initiated coverage on the stock with a hold recommendation on Nov. 20. The company has seven buy and no sell ratings, data compiled by Bloomberg show.By Alex Gabriel SimonLearn more:India’s Fashion Business Billionaires Offer Clues to Cracking the MarketAt least 20 percent of India’s billionaires can thank the fashion business for part of their fortunes. Global brands have lots to learn.