I thought this one should be in Tyre Talk section?
You can check some of my posting over there. I have suggested other alternative brand for people asking for opinion on Neuton.
My friend's bad experience alone, this is not the first time I have seen such Neuton. Thanks God you're fine as its hard to imagine if this happened at very high speed.
Being a new tyre, it's look more like a manufacturer defect to me. Just look at the damaged line. Sharp object piercing does not cut this proper. Rim looks okay so acceptable driving speed when this occur (personal opinion unless the tyre shop arguments below apply  ).
No warranty though as they will argue you driven the car on muddy road even though its just driven over a grass on the roadside during rainy day.
Other argument is prior to the damage, you may run that inner sidewall on potholes or rough side. Or suddenly swerve to the asphalt edge at high speed<<<Tyre shop's arguments point as usual.
I know most tyre shop will pump at least 240 or even 250kpa on new tyres. I usually pump higher kpa after run in period.

Wow...what kinda Neuton is this? I'm using neuton nt8000 so far very good & the best bang for buck I ever spend. Comfort & mid performance tire.

i was a solid believer in nexen n8000 and up to today..i am still. i have shifted to d5 good year f1's because of a single fact - NEVER EVER SKIMP on tires for your precious car.
That's the only thing that holds the car and using cheap tires like neuton or ATR sport is just asking for trouble if u are a high speeder - ie 100kmh and above. there is no mesh on the sidewall for support and always...almost always the sidewall will give way

What's the manufacturing date on the tyre? Overdue maybe? Plus "what's the retail price on one of those?"

I Googled it and found it to be American tyre company so that reminds me of the infamous Firestone incident.

no matter how i look at it, it seems like u causes it.
anyway, my 2 days old continental cc5 come along with the new elantra also burst on 2nd day. all i did was cornering at 60km/h, masuk medium sized potholes, and wa lah, both left side tyre front and rear pecah

exact same damage like yours, only that mine was cut open on the outside

for me it looks like the tire no pressure ald then u drive for a distance
so there is a mark at the sidewall there

normally tire warranty doesnt cover sidewall damage , so pls dont go argue with the tire shop
they r seller and installer , if come to claim u need to sent back to supplier place!
u can ask tire shop guy sent to claim and wait the report

but tire is wear n tear item , normally b4 tire busted tire will bulg first ,unless the impact /sharp object kena ur tire