It has similarities to the Katar, but the Katar is much longer and mostly has a more pronounced armor piercing tip. Its is more leaning toward a South Indian spearhead.
The 'Madu' you mentioned is described in the same group of parrying weapons in Davinder Reddy's 'Arms & Armour of India, Nepal and Sri Lanka' p. 332-333
The 'Madu' is often attributed to the region of Rajasthan, North Indian region.
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