Upvote:2
So you lied in your application and you are asking if this might cause problems? The answer to that is YES
Upvote:3
On business visa you suppose to have business meeting or something for your company or as freelance to do in Russia, so if they ask you why you are there you can simply say the reason, show your meetings or what you suppose to do there.
Custom duty is like russian roulette, may they ask you questions may nothing, depend by your nationality and by luck. Or may they don't speak any english and they let you go.
Upvote:5
You are in risk of not being admitted to country if you lied on the application. Customs and immigration officers will almost always ask why are you entering the country, what do you do there and when do you plan to leave.
If they are suspicious, then they will question further. Based on that you are in risk of refusing entry and sending back. You should be declaring the same for all visa applications and have to truthfully explain what happened.
In short, its a huge risk to get visa under false pretenses and seeking entry.