Can anyone suggest me a good book/guide for the IR Manager role that will help to take appropriate decisions?

Dear All,
Can anyone suggest me a good book/guide for the IR Manager role that will help to take appropriate decisions on a case-to-case basis?

With Best Regards
Sudam Vanarse

Lot of queries have been received, on the same matter, earlier and all such queries were attended also. However, for your ready reference, again replying

Best book on Labour & Industrial laws - P L MALIK's Hand book on LABOUR & INDUSTRIAL
LAWS,

H L Kumar's book on Labour & Industrial law is also a good one, which can be used as a reference