Dear jayesh181

Welcome to 419 Legal.

This seems like an "Employment related Scam" since they have sent an email from Nigeria
and all emails been sent from and received by free email service.
So it would be better to STOP contact with the company and NEVER inform your personal infos with the detail CV
and your bank account details to them for the time being.

Even if they approved to send you the allowance via Western Union, it could possibly be a bait to lure you out.
There would be less chance to receive the allowance, instead you will be in danger to reveal your personal details
with International Passport, Driver's License, Social Security Card, Insurance Card and/or Present Employee's Card etc
which can be easily utilized in another scam. Do you want to be involved in the ring of fraudulence?? I don't think you want!!!
.
Chasing easy money would often end up by losing your hard earned money.
It is BEST to stay away from the company and forget about the job opportunity at this stage.

Awareriskinc