Which two achievements were made during the mauryan empire? the creation of arabic numerals the construction of temples to promote hinduism the establishment of an efficient postal system the creation of the border state of bactria the construction of a good road system

During the Mauryan Empire, two achievements were:

The construction of temples to promote Hinduism. During the Mauryan Empire, there were three main religions: Hinduism, Jainism, Buddhism. In  particular, Hinduism was the only religion at the time of the beginning of the empire so that such temples were built;The construction of a good road system.  During the last period of the Mauryan Empire, there was the building of roads along which workers built rest houses for tired travelers. Trade routes were also expanded and secured. This happened because, during this period, the focus was only on the improvement of the quality life of people together with the spread of Buddhism.

Depends on your opinion but i agree