What are the two words for 'of course, certainly' in Hindi?

What are the two words for 'of course, certainly' in Hindi?

जरूर, निश्चित रूप से,निस्संदेह

Namaste Hari Thank you for your reply. I have two words: ज़रुर- zarūr and अवश्य-avaśya

hi John अवश्य is also a good word but just for the knowledge, it is hardly used in common day to day usage. If you would look at the mythological soap operas, you would find it being used there. but its use now is less frequent and has been replaced by other more easier to use words, as, ज़रुर