Schengen Visa Sponsored by Polish Citizen - for no less than three months

I am applying for Schengen Visa for Poland but they are asking me to show bank statement for last 6 months which I can but there is not a lot of money maintained in my account and also my salary is not that high. Now I can deposit some money just before applying for visa but not sure if that will work. what do you guys say ? Are there any workarounds ? What if i can arrange an invitation from Poland saying that the concerned person will be taking care of all the travel and staying expense, in that case will they ask for my bank statement or my bank balance ? I can deposit 2x of what is required for the visa but will the invitation letter help ?

Merged: How to make sure I get Poland's Schengen Visa for 3 months and no less than that ?

I am applying for Schengen Visa for Poland, I want to make sure that I stay there for 3 months and no less than that ? how to make sure of that ? how to convince them ?

Officially you need to have at least 100PLN per day during your travel in Poland. The possession of those funds needs to be proven. Covering the amount of money by just one transfer and in addition, at the last moment may raise doubts. I don't see however anywhere that one time payment is not allowed. But even if you receive a visa, you will be at the mercy of border guard officials. Someone may be so meticulous and unwilling that finally your entry will be refused. But that's just only my guessing, and this will be enough. Generally an entry to Poland with the intention to travel shouldn't be a problem when your application is fine, the total amount of funds is correct and extra useful papers are present - official affidavit of support and appointment letter.

The regular Schengen Visa (type C) is issued for up to 90 days. If your intention is staying longer in Poland, you should apply for the Poland's National Visa (Individual Country) - type D.

My question was how can I convince Border Police to let me stay in Poland for 3 months ? Can you please help in that ? what are the factors that can help in letting them stay me there for 3 months ?

You can't. One of the conditions is that you will leave the Schengen zone after three months, and it is painfully obvious that you have no intention to do so. No consul will ever believe otherwise, even if you do find someone foolish enough to sponsor you.

Sorry, but you stink of high risk and dishonesty, and there's nothing you can do to wash the stink out. No amount of money, and no amount of sponsors will help. Scratch the EU off of the list of places you will visit in your lifetime.