i have a question related to samas not by this topic.

in our book in karmdharya samas in an example theri is given that mukh rupi chandra=mukh chandra and in other books it is given that there is no such word.in those books it is given that chandra rupi mukh=chandramukh.what should i consider now???

is a word the smallest possible language ?

hindi mein kitne akshar hote hain?

other name of these word sutluj

 how many types