So now you understand why I am asking Jatts to test their Y-Dna, more samples, greater the accuracy of connection. Sidhu and Brar both Ra1a1a, so you can say they are related, Sandhu and Sandher both R1a1a, see the similarity in the name and the bloodline. Based on the current data one can only reach such conclusion.
Sandhu Jatt H1a, unlikely, as their are Sandhu Chamars ,and Chamars are mainly H1a, also this person have a Polish name too, so he could be a Gypsy, Gypsy are also H1a.
So many gotras claim their origin from some other, usually a famous gotra, this relationship can easily be proven or unproven through Y-dna test.
https://docs.google.com/spreadsheets...it?pli=1#gid=0
On that sheet line 67, you see a Dixit Brahman
Bihar, India (Z94/L342+ L657+ Y9+ Y7- Y2351+ Y2353+ Y2392+)
Line 209 Jatt Muslim Pansota, Toba Tek Singh, possibly Hoshiarpur (Z94+ L657+Y9+ Y7+) (Bhatti maternal)
These two have a common ancestor Y9, even when one is a Brahmin and the other one is a Jatt, children of the same father Y9, after that one is Y7- and the other one is Y7+, cousins now. This Jatt is related to this Brahmin around R-Y9V4070/Y9 formed 3600 ybp, TMRCA 3600 ybp, see
http://www.yfull.com/tree/R-Y9/
Also see
http://www.yfull.com/tree/R-Y7/, R-Y7V4155/Y7 formed 3600 ybp, TMRCA 3100 ybp.
But these R1a>>Y7 Jatts are related to other J2 Jatts only about 45000 ybp, and to L-M357 Jatts about 44000 ybp.
One thing to keep in mind is, that all Jatts are not the children of one ancestors but various tribes, that came to be known as Jatts later on sometime, and that time line can be determined like in the example above.