sakya

https://www.google.com/search?tbm=isch&source=hp&biw=1600&bih=769&ei=Z11GWu-2DaCcvQTNsb-YCw&q=Sakya+Ganesha

Cut

Respecting mothers order allowed shiva to cut his head

Respecting fathers order allowed parashu to cut his tusk

Hill

Pariyatra, an ancient king had a son Hrasva Srungi visited all holy and sacred places to regain normal bodily stature and finally visited this holy place of Mangalagiri and stayed for three years performing penance. All the Devathas (Gods) advised him to stay at Mangalagiri and continue to do penance in praise of Lord Vishnu. The father of Hrasva Srungi came with his retinue to take back his son to his kingdom. But Hrasva Srungi took the shape of an elephant to become the abode of Lord Vishnu

http://kingofjungles.blogspot.com/search/label/Mangalagiri

Pralaya

http://kuinformation.blogspot.com/search/label/Thirupurambiyam