Sant Giani Gurbachan Singh Ji Baljeevan and Pahul

[NaamTiharoJoJape]

About Vadde mahapurkh's early life before joing Sant Sundar Singh ji's jatha, is it true they had taken pahul from Budha Dal and had been a nihang singh before hearing Sant Sundar Singh jee at a smagam where budha dal mukhi Akali Baba Teja Singh were also present. There are several different views on this, and since most of sangat here is from England, fortunately residence to sachkhand niwasi Giani Gurdev Singh ji, Giani Pritam Singh Likhari ji and other prominent singhs of jatha bhindran, I was wondering if anyone had heard something of the sort from a singh etc., there are people saying Vadde Mahapurkh used to consume jhatka once and degh as well until becoming mukhi of Taksal. Just want to clarify the details. Would appreciate any further khoj done. Anything about this in sri gurmukh prakash or giaan kirna or khalsa vachitar jeevan? 

[Jacfsing2]

According to Damdami Taksal's website, Giani Gurbachan Singh had Amrit when he was a baby and retook amrit when he met Sant Sundar Singh, at 18.