1.By all means-certainly, of course- (ନିଶ୍ଚିତ ଭାବରେ)
Ex- By all means borrow my book if you want to can I see it it by all means.
2.By ballot- by voting- (ଭୋଟ ଦ୍ୱାରା)
Ex-He was elected secretly by ballot.
3.By chance- accidentally- (ଦୈବାତ)
Ex-I met my friend at the bus stop by chance.
4.By choice- (ପସନ୍ଦରେ)
Ex-He studied law by choice not out of compulsion.
5.By day/night-
Ex-The bats sleep by day and fly by night.
6.By degrees- gradually- (କ୍ରମେ କ୍ରମେ)
Ex-By degrees their friendship grew into love.
7.By half- extremely- (ଅତ୍ୟଧିକ ଭାବରେ)
Ex-He is clever by half.
8.By hand-(ହାଥରେ)
Ex-The letter was delivered by hand.
9.By heart- from memory-(ଘୋଷିବା)
Ex-He learnt the poem by heart.
10-By mistake- in error-(ଭୁଲରେ)
Ex-I left my umbrella at home by mistake.
11.By luck-(ସୌଭାଗ୍ୟକ୍ରମେ)
Ex-By luck I met him just at the station or he would have gone away.
12.By no means- certainly not- (ଅଦଉନୁହେ)
Ex-This exercise is by no means difficult as it appears.
13.By oneself- (ନିଜେ)
Ex-I am sure you can't possibly carry the luggage by yourself.
14.By right- justly having legal claim- (ନ୍ୟାୟତଃ)
Ex-The property belongs to her by right.
15.By far- by a great amount(ବହୁଳଭାବରେ)
Ex-Ratan is by far the most intelligent boy in the class.
16.By return- by to next post – (ଫେରନ୍ତା ଡାକରେ)
Ex-Please reply by return of post.
17.By request- (ଅନୁରୋଧ କ୍ରମେ)
Ex-By popular request the president was elected again.
18.By rote- by repetition- (ମୁଖସ୍ତ)
Ex-Children learn their lessons by rote.
19.By surprise- happen unexpectedly-(ଅପ୍ରତ୍ୟାଶିତ ଭାବରେ)
Ex-Terrorist took the town by surprise.
20.By turns-in rotation- (ପର୍ଯ୍ୟାୟ କ୍ରମେ)
Ex-Weal and woe come by turns
21.By vote- by election- (ଭୋଟ ଦ୍ୱାରା)
Ex-The sarpanch is elected by vote.