Freelancer vehicle depreciation

Hi,

I am freelancer and also work in a company. I have declared my income and also paid advance tax as per the calculations. I do not have firm registered or shop act. I have a separte savings bank account for my freelancing income and other account for my regular job income.

I plan to buy a 2 wheeler and have queries around that : 

1. Can I buy a 2 wheeler and claim depreciation against it ?

2. What is the depreciation rate assuming 2 wheeler is costin 1 lac rupees and I buy it in month of Feb this year ? What is the depreciation I can claim on it ?

3. I am planning to avail loan for buying the vehicle so should the payment be made from my freelancing bank account ? 

Any other thing which I need to consider for this transaction.

Thanks.