Whether application of 44AD is mandatory or Optional?

Going by the language used in section 44AD(1), it appears that it is a mandatory provision. Assessee does not have any option to choose between 44AD and normal provision.

Further, it also appears that even in case of an eligible assessee having eligible business and having turnover between 1 to 2 crores, he has to mandatorily declare profit of 8% or 6 %.