The JD-U-BJP ties, which have remained fragile in the recent months over the projection of Gujarat chief minister Narendra Modi as the NDA's next prime ministerial candidate, have received another jolt. Even before the dust over Bihar chief minister Nitish Kumar's advocacy for selection of a 'secular' candidate for the top post settled, more remarks - attributed to him in an interview with a weekly news magazine - snowballed into another row in Bihar on Wednesday.