Thanks, Rod, for your reply. Much appreciated.
Well, a couple of hours back, I thought of trying apple support, so i went to
https://getsupport.apple.com/
and after a few minutes wait i was given a call back, it was a Singapore number so obviously Apple has a support setup over there.
I was rather pleased with that.
I had a human being on the line, and he very patiently guided me through the entire process.
He checked my identity, asked for my apple ID, enquired if the 4S had been on that apple ID and i said i wasnt sure.
He put me through a few hoops and then asked me to open iTunes on my MBP and connect the 4S.
Just like you said in your reply, he asked me to hold down the HOME button while connecting the phone to iTunes.
Then he walked me through more hoops and finally he got me there.
He wanted for some reason access to my screen which I had no objection to, though wasnt sure why. But despite several attempts he could not succeed.
The call lasted 43 min, Phew! and then because we got disconnected he called back again for another 8 mins.
Happy to inform you that the phone is now unlocked and I have set a new passcode. so I am up and running on that as a spare phone for emergencies. Or I might give it to a poor student, who cant afford a smart phone, as in India online schooling has become the norm due to Covid.
Required a lot of patience, but in the end it was well worth it.
Thanks, to all those who tried to help me.
Finis !!