One of the easiest ways to know marriage age with the help of astrology is to understand and analyse the birth chart.
It is highly imperative to pay attention to the 7th house readings as the 7th house in your horoscope is related to marriage.
Sun in the seventh house means that an individual will face many obstacles in their marriage journey. It will also face delay.
Manglik Yog, or the presence of Mercury in the seventh house, indicates that an individual will get married after 35 years of age. They will also face quite a few obstacles.
If there are more auspicious planets in the seventh house, you will marry early in life. This can happen possibly between the ages of 16 to 23.