Summit securities holding company of RPG group at discounted among holding companies

The valuation of Summit Securities seems to be getting ridiculously low.I know that holding companies should trade at huge discounts because of their very nature but this seems stupidly low

As far as I can work out it has investments worth very very approx
2400 cr in CEAT
2400cr in KEC
1000cr in Zensar

and then negligible investments in other companies

BUT also it has a subsidiary (which I think is fully owned ??) called Instant Holdings…This has investments worth
2200 cr in CEAT
1100 cr in KEC
400 cr in Zensar

This seems to come to 9500cr whereas present market cap is 736cr.

I need to research more fully whether Instant is fully owned subsidiary but even if it isn’t it is a huge bargain

I have been noticing that holding companies have been doing well recently.Even a sister company Stel share price has done well recently and now trades at more like 1/3 of book value.Also Nalwa and Bengal and Assam have been doing well.

Disc I bought some shares today.