10. “The expression ‘cruelty’ has not been defined in the Hindu Marriage Act. Cruelty for the purpose of Section 13(1)(i­a) is to be taken as a behavior by one spouse towards the other, which causes a reasonable apprehension in the mind of the latter that it is not safe for him or her to continue the matrimonial relationship with the other. Cruelty can be physical or mental. In the present case there is no allegation of physical cruelty alleged by the plaintiff. What is alleged is mental cruelty and it is necessarily a matter of inference to be drawn from the facts and circumstances of the case. It is settled law that the instances of cruelty are not to be taken in isolation but to take the cumulative effect of the facts and circumstances emerging from the evidence on record and then draw a fair inference whether the plaintiff has been subjected to mental cruelty due to conduct of the other spouse.”