Here you can read an abstract from the article How Old is the Katar?
In India, Art and Culture 1300-1900 Stuart Cary Welsh on page 271 writes thet the katar probably originated in southers India. Unfortunately he does not explain how he came to that conclusion.
But as you can see ffor the abstract mentioned above I agree with him. The katar in question is no 205 on the drawing. A photo of the statue holding the katar is shown inthis book. Donaldson, Thomas E.:Hindu Temple Art of Orissa, vol. III. E.J.Brill, Leiden 1987.