Hello there

Let me tell you these two things are totally different from each other. You should choose whatever you likes and will be able to concentrate in it without getting bored.

Bsc agriculture ,As you must be knowing that it is a 4 year undergraduate course where you would be studying about practices in agricultural Sciences and will deal with the courses like Genetics and plant breeding ,microbiology ,soil science,plant pathology and much more . After completing your graduation you can enter into the fields like agriculture Officer agriculture analyst, agriculture sales officer ,ICAR scientist and these designations have much paying salary if I would talk generally then it ranges from 5 to 15 lacs per annum.

Now if I talk about course in fashion designing then it is also a very expanding opportunity in the fashion industry.You can start your career as a Trainee designer when you complete your respective course and enters any fashion industry. You can become fashion designer,  fashion Illustrator ,fashion stylist, cutting assistant ,graphic designer ,fashion consultant, fabric buyer,costume designer and much more.

Choose wisely whichever suits you and in whichever field you would be getting more excited.

I hope my answer would surely help you!

Thank you!