
This is a more thorough explanation:
No specific grounds
There is no particular provision in indian law that addresses "lack of sex" as a reason for divorce.
Mental Cruelty
Courts have construed the withholding of sexual interactions as a type of mental cruelty, though, especially when it is chronic and lacks a valid basis.
Evidence is key
Evidence is essential. To prevail in a divorce case based on this, the divorcing spouse must demonstrate that the absence of sex has seriously harmed their mental health.
Other factors:
When determining whether a sexless marriage is grounds for divorce, the courts also take into account the marriage's entire context, which includes the couple's emotional bond and other facets of their relationship.
Impatience and mental health:
According to some research, a sizable portion of divorces in india are attributed to sexual dissatisfaction, occasionally brought on by one or both couples' medical or mental health problems.