Ailing Shiv Sena chief Bal Thackeray's health caused sudden concern late Saturday even as close family members came to see him here. His nephew Raj Thackeray who arrived the second time at his home Saturday to enquire about his 86-year old uncle's health later assured media-persons that he was fine. Various media reports suggest that the Sena supremo is suffering from lung and pancreatic ailments. There is no cause for any worry. He had called me so I came. He had soup then fruits and is now resting Raj told anxious media-persons as he left for his home in Dadar late Saturday