Pata sword with European blade:
https://www.youtube.com/watch?v=7niTpIW7dEk
Pata sword with Indian blade:
https://www.youtube.com/watch?v=9QHTBq2DzSM
https://www.youtube.com/watch?v=FTwVfHkLtK0
https://www.youtube.com/watch?v=rkakKuGuI3s
With the Pata with stiff European blade the parry of a full blow will result in a dislodged elbow or shoulder or, in best case scenario with the wielder seriously out of balance and vulnerable.
With a Pata with flexible Indian blade the parry of a full blow would have almost no impact on the wielder as the blade will elastically bend and absorb the shock, allowing the wielder to continue his movement and deliver a second and third blow, while continuously moving so not to be vulnerable to a quick approach attack.