Thank you very much, but i am requesting for exact route suggestion.

I just edited and modified best to cheapest.

Can you please tell me easiest station names?

For me, best means economical. I do not have problem to use public transport.

Ya i know, that is my last option. Before that, i am looking for some train, bus suggestions.

So, somehow i solved the situation. I came to verona from venice( costs 8:60 euro), then i have taken train EC 188 which costs 76 euro and i will reach München at 10:30 pm aproximately. I have already booked a ticket from München to Köln from LTUR which is prety cheap 25 euro. It will leave München at 12:01 am and will reach Köln at 7:30 am aprixametly. So my total expense is 110 euro and going to take 16 hour almost!! So, my suggestion is: never travel without a passport in Europe, even if you have residence permit.

Hi, actually, i need to be in köln by tomorrow evening and i tried some flight option. I can only take train , bus or rideshare.

I am trying to buy some ticket from ltur. I tried to rebook, but they can not provide before friday.

That is a good choice as well.