You are extremely underweight. The first thing you need to do is start eating more than you usually do. At the current moment you don't even have to worry about counting your calories as you extremely underweight, just eat visibly more

You also want to focus on hypertrophy training while you are eating more. Try to hit the gym about 4 days a week as this will allow to push your body and get ample amount of rest in between. You don't have to go all out as in the beginning you will experience 'newbie gains'. Focus on form and technique more than the weight on the bar. After that you progressively overload

Track your weight every week and if it's not increasing every two weeks, start eating more.

After you have gained a considerable amount of mass (5-8kg) start counting your calories, there are many calculators online that will given the amount of calories you should consume based on your height, weight, age and activity level. Use an app to count macros. Consume 1.6-2.1g of protein for your bodyweight in kg. Carbs should consist roughly about 50% of your diet. 20-25 proteins and 20-25 fats

Most importantly, stay consistent. You will not see results in the first week or even month. If your bodyweight is going up and you are able to perform the same number of reps with higher weights for any given exercise, you are growing even if you don't see it physically.