Painstakingly
1. Painstakingly, Fastidiously : لگن کے ساتھ : (Adverb) In a fastidious and painstaking manner.
It is almost a waste of time painstakingly to learn the routines of selling.
Manner, Personal Manner - ڈھنگ - a way of acting or behaving; "You don`t have manners to speak ?".
Conscientious, Painstaking, Scrupulous - فرض شناس - characterized by extreme care and great effort; "Conscientious worker".