What's the difference between manufacturing and production?

The two phrases ‘to produce’ and ‘to manufacture’ are often considered synonyms and are used as replacements for each other. Many a times, the use of the two has actually ben interchanged. However, to produce is not entirely the same as to manufacture. As a layman, one might consider both the words to describe a process in which something new is made. Although that is true, but there are a few differences between the two words.