Trying to find connection between Shaunak (Sounak) Rajputs and their link to the Sonigara Chauhans

Hi everyone, looking for some help here. I’m researching the Shaunak branch (Purvanchal region - Jaunpur/Varanasi/Prayagraj).

According to our family records:

Raj Kul: Chandravanshi

Kul: Sonigara Chauhan (known as Shaunak Rajputs in Purvanchal and Awadh region)

Kul Devi: Ashapura Mata

Gotra: Soun (derived from Sonagiri/Jalore)

Our history says we migrated from Neemkhor (Jalore/Sindh) around the 1500s. Traditionally, Bhats from Rajasthan used to visit to update our Vanshavalis, but that stopped after 1857, and the link was broken.

A few quick questions:

Is "Shaunak" recognized in Rajasthan as a corruption of "Sonigara"?

Does anyone know where "Neemkhor" was specifically? (leads suggest Dungarpur or Sindh).

Do any Sonigara families have records of branches moving east toward Kashi/Prayag?

Any leads or insights would be great. Thanks!