[Jim McDougall]

The 'Deccan' attribution is indeed often difficult, not only in weaponry but in definition itself, whether geographic, cultural, religious or linguistic. Loosely it is largely the central area of the subcontinent. It seems that 'Deccani' attribution only became a focused denominator in the last few decades, and even then it is agreed that distinct characteristics are hard to define.

However, the 'langet' shape in the hilt structure of this without the expected quillons seems to align more with the khanjhar daggers of which many are attributed to Deccan, but perhaps more with Mughal favor.

While there is a degree of similarity or feel of the Chinese jian, it seems more to align with the khanjhar dagger in the same manner many full size swords have resemblances to dagger forms in similar contexts.

It seems much of Mughal styling aligns with Persian or Ottoman, but it would be hard to define Chinese influences specifically as they filtered through so many cultural designs and fashions, which in turn were adopted by them.

Attached Deccani khanjhar : from "Arts of the Muslim knight",(2008) #209
late 16th c.
Chinese jian, online Wiki
Tulwar, personal coll. attributed to Deccan, shamshir form hilt
blade British M1788 light cavalry, poss. EIC.
Koftgari added .