No sorry I do not know but I have seen turkish karabela sword with very similar markings, I will see it again next month and try to take pictures OK, that karabela is marked almost in the same way with nice heavy blade almost 5 cm wide near the tip. The other marking on the blade back looks like indian to me.
I have simmilar on a few tulwars, and I consider them as arsenal markings given to swords later than blades were made ...maybe wrong
This tulwar is non-damascus?
Best
Husar