Age and Salary Ratio?

I am 27 now, and my actual CTC is 18 LPA in which I get 15 LPA in hand. Apart from this, I work as a freelancer and earning near about 1L per month, don’t know how long it will be goes, but currently earning this much. What will be my expected? Salary should look like as per my age. What other peoples get the CTC range in current age of 27? What should I do and how can I increase the source of income as I need to marry in December and my Savings are just 4L currently.