Harsidhhi

Harsidhhi, a contracted form or, at its very least, a form of "Harshad Amba" - The Happy Mother, is considered one of the aspect of Amba and Kalika, the Hindu Devi. She is also known by the names like Harshal, Harshad, Harshat, Shikotar, Sikotar, Dasha, Momai and Vahanvati Mata. She is also known as Sindhoi Mata or Goddess of Sands, in Sindh in Pakistan, where her temple is located.

Kuldevi

She is worshiped as Kuldevi by many Kshatriya Brahmin Panchariya and Rajput communities. The Chandrana clan of Lohanas, Brahmakshatriyas, many Jain castes as well Brahmin and Vaishya communities also worship her as their Kuldevi. She is also religiously worshiped by fishermen and other sea-faring tribes and people of Gujarat.

Temples

Harshidhhi Mata Temple also known as Harshal Mata Temple located at a place called Miani, some 30 km away from Porbandar en route to Dwarka. The main temple was originally located on a hill top facing the sea. It is said Lord Krishna had worshiped her during his lifetime and has since been living atop hill called Koyla Dungar. The original temple atop the hill is said to be have been build by Lord Krishna himself. Lord Krishna wanted to defeat the asuras and Jarasandha so he prayed to Amba Mata for power. With the blessings of the goddess, Krishna was able to defeat the Asuras. After this success, he built the temple. When Jarasandha was killed, all Yadavas over overjoyed (harshit) and they celebrated their success here. Hence the name Harshad Mata or Harsiddhi Mata. She has since been worshiped as kuldevi of Yadavs.