Hello Sheeba,

There is no such book for syllabus. But if you want the syllabus for Pharmacy assistant then I am providing a link below please go through it for syllabus :-

https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.healthcare-ssc.in/images/qp/model-curriulumn/model-curriculum-for-Pharmacy-assistant_FINAL.pdf&ved=2ahUKEwjO0OiYvNXjAhXF4nMBHaUZA-8QFjACegQICRAC&usg=AOvVaw1H_b41Dh0Op_LQMTkbaX4e

Hope it helps!!!