Mostly a thought process & so a far fetched optionality at best.
Real Juice actually started as an independent venture by Amit Burman with his own money. He only used Dabur’s distribution initially, but after proof of concept it got equity funding from Dabur as growth capital. Gradually with continued funding it became a subsidiary (as Dabur’s food division) and then merged with Dabur when Real started to contribute significantly to the bottom-line of Dabur.
I believe we need not to give much thinking to them now. Most companies manage new ventures like a startup, e.g. but they allocate some company-funds those projects. But in this case the non-listed investments (Eveready is listed though) are done with their personal money.
Also Dabur is the bread and butter of the promoters. No Dabur promoters draw any remuneration! (Source) They are solely dependent on dividends for their living and they are highly conservative! So, I believe, they will only take a step, if ever, when those investments become sustainably profitable and large enough to contribute meaningfully to the bottonline and fits strategically with Dabur.