The headline is wrong. "Men" are not delaying (their own) marriage. Pre-arranged marriage is still a thing. It is usually not a decision of the individuals, but

The headline is wrong. "Men" are not delaying (their own) marriage. Pre-arranged marriage is still a thing. It is usually not a decision of the individuals, but parents take care. Like all parents, everyone wants the best for their children, even adult children. The caste system is still a relevant factor. Social level determines who can marry whom. A good job opens up better marriage options. A university degree (even if just on paper) helps, too. So parents are delaying the marriage deals.