Powerful tantric version of Maha Mrityunjaya Mantra

In some Hindu Religious books the complete mantra has been mentioned as:-

oṁ hrauṁ jūṁ saḥ
oṁ bhūrbhuvaḥ svaḥ
oṁ tryambakaṁ yajāmahe sugandhiṁ puṣṭi-vardhanaṁ
urvārukam iva bandhanān mṛtyormukṣīya māmṛtāt
oṁ svaḥ bhuvaḥ bhūḥ
oṁ saḥ jūṁ hrauṁ oṁ||

which is its Tantric version.
Shiva Beej mantra has been added ti this. This version of this revered and most widely chanted Shiva Mantra has the Pranav [Om] 14 times in it. The Beej Aksharas are given in the reverse order at the end of this version.