Visitor Visa - B2

Hi All ,

I got rejected for B2 visa , I applied for Canada Study Permit and was approved in February .

Please help me and advise .

I applied at Dhahran, Saudi Arabia , I am 25 years old single male from India .

Here is how the interview went :

VO : Good Morning
Me: Morning

VO : Purpose of Visit to United States ?
Me : Tourism

VO : Where you will visit
Me : I will be in Canada , so I will go explore Niagara Falls and then enter United States through Buffalo , and fly from Buffalo to New York .

VO : Can I see your Canada study details ?
Me : Sure , here are documents ( Visa Approval Letter & Letter of Acceptance ) and please check the visa sticker in the passport

VO : Oh right the sticker
Me : Smiling :)

VO : So what's the cost of your studies ?
Me : 38,000 CAD

VO : Who is paying ?
Me : Brother

VO : Position and his Salary ?
Me : General Physician & YYYY SAR

VO : So that's around YYYY $ yearly , but that's less and doesn't equal your study fees.
Me : My dad gave money before he died and we kept it in my brothers account . So we have enough money .

VO : Do you work here ?
Me : Yes

VO : Can I see your employment letter , bank statement ?
Me : Shown

VO : Looks into my statement , " my balance was pumped in the end I know I made a mistake ) but thought it doesn't matter as long as it's a good balance " .

I'm sorry I can't give you a visa right now ,
I have to say that it seems you took money from others to keep in your account in the last date of printing the statement . But my advise is that you apply from within Canada , Montreal , Toronto or Quebec .

I was surprised that the visa officer suggested that , as always people are rejected without any reason .
The interview went for like 7 mins .

Please advise what should I do ?
Now as a student in Canada , I am planning to apply after 6 months , but I am confused what to choose in Person/Entity paying for trip ????

First time I chose myself , could I choose my brother the second time ?

Thank You .