Hello there,

It is usually considered that ranks within the range of 100 is really good and almost a sure chance of getting a seat. Your general rank in BHU PET for M.Sc. in Chemistry is 70 which is very great. And the female rank of 15 makes it a sure shot for you to get a seat in the women's colleges under BHU. You have high chances of making it even in the main campus. Hope for the best.