BONGAIGAON, May 31 - Thirteen candidates have topped the ranks in HSLC final exam in Bongaigaon district. They are: Bhaskar Jyoti Das (4th), Arnab Kakoti (5th), HillolJyoti Das (9th), Samudranil Dutta (9th), Dhritiman Das (15th), Wasima Nasrin (15th), Himprakash Das (16th), Ananya Roy (17th) and Ananya Sharma (17th) (all from Bongaigaon HS); Bidisha Sarma (13th) and Kakoli Goswami (17th) from Manikpur HSS; Rimpa Dutta (10th) and Alimpika Talukdar (13th) from St Albert�s English Medium School and Sankar Dev Sishu Niketan, Boitamari, respectively.