As marriage is important part u need to look for and healthy. What is your height weight. Can help u to gain 4-5 KGS in month with diet and exercise only. No medications or supplements those have side effects on long run. As it will be your marriage. Skin and hair require special. Nutrition.
Congrats for getting into alliance and best wishes for starting a new phase of life.
Weight gain is a slow an steady process.
Healthy muscle gain is what is required at your age.
A balanced diet will promote muscle and over all development. In case of non-vegetarians, there are lots of option to select from. For pure vegetarians there are many combinations of foods that promote muscle growth. I do not favour protein supplements unless you are a sports person.Pulses, Soya, cruciferous vegetables, dairy products and whole cereals promote muscle gain. Along side proper exercise and a healthy lifestyle aids in overall developmemt.
For tailor made diet plan feel free to contact me or register at http://ghkritediet.zest.md or drop in a mail at ghk.ritediet@gmail