Regarding work-nature clause of our partnership deed

Indian Construction Company (97 Points)

21 November 2017  

The WORK-NATURE clause of our partnership states - 

"That the nature of the partnership shall be execution of civil contract work and engineering work, transportation works and all type of contract work AND other type of business/works which the partners shall mutually determine from time to time " 

So,

our question is that; if we want to start trade in other areas like "pharmacy" or "education" or any other areas,

then;

DO WE NEED TO AMEND OUR PARTNERSHIP-FIRM and SPECIFICALLY ADD terms/clause like "pharmacy" "education" etc., IN THE DEED OR since our partnership firm clause states that we can do - "other type of business/works which the partners shall mutually determine from time to time"  WE CAN SIMPLY REGISTER OUR FIRM w.r.t. THE APPROPRIATE HSN/SAC code under GST & start doing other business whenever we want to do so, without changing anything in our partnership deed ??