Su.Ki is right. Kindly, added to a request, means actually that you are demanding and insisting that some person do something for you with "kindness". It is itself, expressive of a need of one person, requesting something, to control the behavior of others. It is therefore, a form of discourtesy, for a person to add "kindly" as a precondition to another person doing something. If I agree to do something for someone, I do it merely because I choose to do it, and not because I am "kindly". . Such odd expressions have worked themselves into habitual us. One way that you would commit the same error, would be to ask your question as follows: "Kindly answer my question." Many people would take immediate offense at that. They may be willing to do something for you; but they might resent your demand that they do it kindly. They might be willing to do it because it is reasonable, rather than "kindly". .

Hello Awan First let's correct your question. It should be: Could anyone explain the difference between 'kindly' and 'please'? My advice to you is to always use 'please'. You can use 'please' in conversation or in writing whenever you want to ask someone to give you something or to do something for you. 'Please' will always be correct, polite and appropriate, whatever the situation. 'Kindly' is mainly used in formal contexts, such as polite signs, notices and business letters, and is much more difficult to use appropriately. You will never be in situation where it is obligatory for you to use 'kindly'. I hope that helps.