Invitation to review for an unknown journal
The title of the journal is very suspicious. You cannot even tell whether the journal is within your area of expertise.
This is probably one in the sea of many worthless journals. I am the editor of the SCI indexed journal and have trouble finding reviewers, so they are probably essentially spamming everyone.
I googled for "Asian Journal of Current Research" and got a website. When I tried to go to this website from the computer in my university office, I was redirected to this webpage, which contains the following message:
Website Blocked The website you tried to reach has been blocked by IT security because this website is known to distribute malicious software.
So that's not a good sign. Combined with the name of the journal (which makes it hard to believe it's a reputable journal of X for any reasonable value of X), I would myself certainly not agree to referee papers for it.
Should you respond at all? I don't see the harm in writing a brief reply explaining that you are not interested in refereeing papers for this journal: e.g. it won't take any more time to do that than it did to post the question here. Based on how they respond to this email you could get a better idea of exactly how disreputable/spammy/predatory they are. Also, having responded once I think you can send future emails to the spam folder with a clearer conscience.
I recently received the following invitation to act as a reviewer for an unknown journal. Is it ok to just ignore it?
It's always "ok" (i.e., ethical and socially acceptable) not to respond to unsolicited email from anyone you are not officially required to provide service to as part of your job. So the answer is yes. But a less obvious question is: what are some reasons why it would be good to ignore the request, and what are reasons why it would be good to not ignore it. The ones I can think of are:
Reasons why you should ignore the request:
You will avoid wasting your time responding to what is obviously spam.
Conversely, you incur a cost to the spammer of waiting for an answer from you, making their operations less efficient and reducing their incentives to spam. If everyone ignored reviewing requests from such spammers, they might go out of business.
You will get a good feeling (assuming that's the case) that you are helping fight spammers and in a small way retaliating against people who annoyed you.
Reasons why you should answer the request:
You are a person who really hates making people angry or upset (if that's the case) and can't fathom the thought of ignoring an email from someone. To clarify, I don't think that would be a good reason to answer, but it's a reason.
You are worried that by not replying and annoying the senders, you might hurt your career in some way. Given that these are obvious spammers who have no real connection to academia, that is not a real concern, so you can safely ignore it.