In that case Sir Madhavan Nair, after an exhaustive discussion of the meaning of the expression "same cause of action" which occurs in a similar context in para (1) of O. 11 r. 2 of the Civil Procedure Code, observed: "In considering whether the cause of action in the subsequent suit is the same or not, as the cause of action in the previous suit, the test (1)75 1. A. 121. 209 to be applied is: are the causes of action in the two suits in substance not technically identical?" The learned Judge thereafter referred to an earlier decision of the Privy Council in Soorijamonee Dasee vs Suddanund(1) and extracted the following passage as laying down the approach to the question : "Their Lordships are of opinion that the term 'cause of action ' is to be construed with re ference rather to the substance than to the form of action. . .".