iphone se 2nd generation passcode locked no iCloud account

Did you bother reading the linked article?

What does an iCloud have to do with it? Unless, of course, you didn't fully describe the problem in your original post and the device is activation locked...

If it is activation locked, there is nothing you can do. Activation lock is a theft deterrent system. There is no way to bypass it. Only the owner of the account it is locked to can remove the activation lock.

Sounds like you may have purchased a stolen phone.

Did you purchase the phone from an individual or a store? If from an individual, you've likely been scammed and the phone is likely useless to you. If it's asking for a Passcode, which you didn't set up and after you restored the phone it's asking for a passcode, indicates the phone is likely activation locked. Apple won't help you with that. We can't help you with that. The ONLY person who can, you likely don't know or can reach.

Read this about buying used devices --> The All Too Common SAD Reality of Buying … - Apple Community

The passcode did not set itself.

If you forgot your iPhone passcode - Apple Support

hanu_se wrote:

I guess you have not read my concern with care, I have mentioned that I was able to check if the phone was fully unlocked with USA sim, it worked normally in my hands. so it can not be a stolen phone, also I bought the phone in Amazon with trusted seller.

The fact that you needed a SIM and the phone "worked normally" suggests it has not been correctly erased and removed from Activation Lock. What you should have seen is the factory default display "hello" (and equivalent in other languages.

I have a bad feeling this phone is still secured with Activation Lock.

hanu_se wrote:

I guess you have not read my concern with care,

I did 'read your concern with care'. You have not adequately described the problem. Perhaps you should post in your native language if your command of English is insufficient to accurately explain the issue at hand.

I have mentioned that I was able to check if the phone was fully unlocked with USA sim, it worked normally in my hands. so it can not be a stolen phone, also I bought the phone in Amazon with trusted seller.

It absolutely CAN be a stolen phone. If it was not at the 'hello' screen, and you did not take it through the activation process from there, you did not adequately check the condition of the device.

Yes, I have read the instructions mentioned to reset by connecting to a Mac or Windows laptop Itunes. As the phone is not with me now. I am looking for reset options remotely as my mom does not have technical knowledge to perform the steps using iTunes.

if not iCloud, what else I can provide like IMEI number and purchase details to get the phone reset.

It is not possible to remotely reset the device. Apple can not help you with this.

When you turned this phone on in the US, did it open to the Hello Page? If it didn't, it was NOT prepared correctly for a new user. I'd recommend you reach out to the seller on Amazon for help.