A division bench of Karnataka HC held as follow with regards to Cruelty and Desertion grounds as found under Hindu Marriage Act 1955.

From Para 9,

9. The Trial Court examined PWs-1 to 3 and RW-1 and perused Ex.P1 and Exs.R1 to R8. The appellants attitude towards the respondent and staying away from him for years together and so also filing a petition for maintenance in Criminal miscellaneous No.95/2007 and partition suit in O.S.No.73/2005, she has not made any efforts to join her husband. On the other hand, the respondent had filed petition under Section 9 of the Hindu Marriage Act and petition was not continued on account of appellants readiness and willingness to join the respondent due to which the respondent had withdrawn the petition filed under Section 9 of the Hindu Marriage Act. Even thereafter the appellant had not joined the respondent. The appellant has not apprised the Trial Court as well as before this Court by producing any material evidence and so also what efforts she has made all these years to join the respondent. The contention of the appellant that she is ready to join her husband is only an afterthought for the reasons that she had ample opportunity of joining the respondent during the pendency of M.C.No.4/2010. Now we are in the year 2019. Even during the period from 30.11.2013, the date on which M.C.No.4/2010 was disposed off, till date she has not shown her willingness to join her husband. If her intention was really to join her husband, both Trial and this Court would have made necessary efforts to refer the matter to the Mediation & Conciliation Centre. Therefore, the attitude of the appellant towards respondent for these many years resulted in failure of marriage among the appellant and the respondent. Once the appellant failed to return to her marital home and remained in her parental house for more than one and half decade amounts to both desertion and cruelty.

From Para 16,

16. The principle is, thus, settled that whether in the facts and circumstances of a given case, the plaintiff has been able to make out a case of grant of divorce on the ground of cruelty would depend upon the nature of pleadings and evidence in that case and there can be no straitjacket formula nor an exhaustive list of instances can be prepared, where cruelty is said to have been committed by one or other party to the marriage. Cruelty can also not be inferred by applying any formula because the said question is to be determined keeping in view the social status of the parties, their financial and other conditions, the atmosphere and the kind of employment or vocation which they carry out would all be important to interfere whether on the given set of allegations it has become difficult for the plaintiff to live with the other side and the behaviour of such degree which amounts to the cruelty.

Citations :

Other Sources :

https://www.legitquest.com/case/renuka-v-sangappa/1a2cde

https://www.lawyerservices.in/Renuka-Versus-Sangappa-2019-12-11