Also pointed out in that video was how the Indian version had a smaller and different shaped lock plate. The stock is also beefier.
There’s nothing remotely similar other than a first glance appearance of the two locks.
Lock Plate: Indian plate, has little to no detail of an original 1766 lock plate, there are almost no visible bevels, the teate is not even there and size of course is off and the forward bolster end of the plate is too long.
Frizzen: Nothing similar at all, 1717 - 1766 charville frizzens had a wide swing because the foot curled higher, there are also no bevel details and the face is too far forward.
Frizzen Spring: French frizzen springs were tapered with high detail in the bend, with decorative bevels and a bishops hat finale. The Indian spring looks more like a third model brown bess spring than a charleville spring.
Pan: facets lack detail, and are too fare apart, fence and bridle doesn’t match at all.
Cock: the original in the picture is a replacment, however you can see the geometry just isn’t there on the Indian lock. The distance between the lower jaw and the pan is way off.
Tumbler screw looks like it was picked out at Home Depot.
Mainspring screw, not correct placement.
Sear and sear spring screw not correct placement.
Top Jaw screw meeeeh.
While no two original charlevilles are similar, the Indian charleville woudn’t have passed the initial viewer’s inspection. Not to mention the lock maker would have likely been thrown bastille and his family would have starved to death in the winter for it.
The 1763 and 1766 locks were a high quality flintlock some even considered the highest quality military Flintlock ever designed, as it passed a rigorous test that only showed one missfire in 75 test trials, that specific point should be made aware here.