Explanation--"Charitable purpose" includes relief of the poor, education and medical relief but does not include a purpose which relates exclusively to religious teaching;" The argument is well founded. The test of 'charitable purpose' is satisfied by the proof of any of the three conditions, namely, relief of the poor, education, or medical relief. The fact that some fee is charged from the students is also not decisive inasmuch as the proviso indicates that the expenditure incurred in running the society may be supported either wholly or in part by voluntary contributions. Besides, the explanation is in terms inclusive and not exhaustive. The impugned judgment must, therefore, be held to be erroneous.