Simple sentences used in Congratulations.

In English, congratulations is usually used as a form of praise when someone achieves something special or unusual, for example when someone:

• gets engaged / gets married
• gets a job promotion / gets a new job
• has a new baby
• passes an exam
• graduates from school
• wins an election
• wins a race or contest

Simple Sentences used in Congratulations :

• What a nice beautiful present it is! 
• What a nice wonderful present it is! 
• What a nice smart present it is! 
• Congratulations on getting good marks. 
• It is nice to hear you won the prize. 
• Well done. You have scored him. 
• May I say what a beauty you are! 
• Let me congratulate you for your success. 
• Would you mind if I congratulate you? 
• I am glad to congratulate you. 
• How great you have done! 
• I can't say mere congratulations.

When you want to say someone has done well on a project, taught a class well, given a good speech, or generally done something well, you can say:

• Your house looks beautiful! You’ve done a great job decorating it.
• Good job on the report! I think the executives will like it.
• That was a great class, teacher. Well done!
• Excellent speech! The audience really enjoyed it.
• Good game! (*This is usually said at the end of a sports game to both the winning & losing team)

Hats off!
The phrase hats off, while often said to graduates wearing the illustrious cap and gown, has nothing to do with the tradition of tossing hats in the air in celebration.
Props!
This slang shortening of properarose in the 1990s and refers to respect and esteem.
Three cheers!
Three cheers is generally followed by “for” and the name of the person or thing being celebrated. A person being cheersedmight also respond to a toast of three cheers with the wordcheers, which, especially in the UK, can mean “thanks.”
Hip, hip, hurrah!
For some Victorian flair, opt for the ever-cheery hip, hip, hurrah!