I received mail by yesterday from this email id " MarketResearch_Europe@insideapple.*** "

I'm sorry, krunal248, but it doesn't look the least bit legitimate, to me.

Apple, and other legitimate companies, do not, generally, "cold contact" their customers.

You haven't said whether you simply replied to the email, or if you clicked on a link within the email message.

I hope you didn't click on a link in the message, or downloaded anything, or responded to the email with any personal information; most especially not your Apple ID and/or password!

Check out the following:

Avoid phishing emails, fake ‘virus‘ alerts, phony support calls, and other scams.   

Identifying legitimate emails from the iTunes Store.

There is no way for us to know if it is legitimate. Personally, I would not have responded to it. At least, I would have quit responding if potentially sensitive information was being requested. If this did not happen, then you probably have nothing to worry about.

But, If you entered password-related data, 

Change your Apple ID password https://support.apple.com/en-us/HT201355 

And, here is What to do after you change your Apple ID or password https://support.apple.com/en-us/HT204071

And If you did anything that might result in you being charged for something you don't want, the follow up with your credit card company, etc.

To be proactive, learn about phishing, scams, and Apple practices, etc., see:

If you see apple.com/bill, itunes.com/bill, or an unfamiliar charge on your statement https://support.apple.com/en-us/HT201382

Identify legitimate emails from the App Store or iTunes Store https://support.apple.com/en-us/HT201679

How to avoid scams when using Apple Pay to send and receive money https://support.apple.com/en-us/HT208226

This scam related information from Apple including reporting scams to Apple see Avoid phishing

emails, fake 'virus' alerts, phony support calls, and other scams https://support.apple.com/en-us/HT204759

How to identify scams related to purported apple notifications—per Eric

Root.

“Apple will always address you by your name or the name they have on file for you, not Dear Customer, Dear Client or by using your e-mail address. The e-mail will be from @apple.com or @iTunes.com. E-mail addresses can be spoofed. You can go to Mail/View/Message/Show all Headers to see more. Apple emails won't have poor grammar/misspellings. Apple e-mails will never contain an attachment. Apple will never request personal information by email such as Social Security numbers, your Mother’s maiden name or full credit card numbers. …The only exception to the above I have noticed is if you order something from the Apple Store (apple.com), your receipt will be addressed to Dear Apple Customer. That is a receipt for a purchase you initiated.”

Are you sure the email is legitimate? It may be a scam.