This is Harvard Health Publishing, they say I need about 0.8 grams of protein everyday, now, that means I would have to consume about 70 grams of protein everyday (minimum) to stay healthy, now, I live in India and don't consume that much, but I consider myself pretty healthy.

So, what's the amount one should realistically be aiming towards? If I were to take 70 grams of protein everyday, what measurable changes can I expect in my life?

If u wanna build muscle eat at least 1g per pound of body weight (or 2.2 per kg).

Make sure ur getting enough carbs and fat too though, they're equally important.

This is Harvard Health Publishing, they say I need about 0.8 grams of protein everyday, now, that means I would have to consume about 70 grams of protein everyday (minimum) to stay healthy, now, I live in India and don't consume that much, but I consider myself pretty healthy.

So, what's the amount one should realistically be aiming towards? If I were to take 70 grams of protein everyday, what measurable changes can I expect in my life?

Make sure ur getting enough carbs

What do the carbs do for body builders? Force anabolism?

Carbs are the basic molecules used in your energy metabolism (i.e. almost everything gets converted into glucose through one pathway or another).
If you'd try to meet your calorie requirements with a high protein intake you'd just put unnecessary strain on your kidneys and I don't think you'd enjoy your food as much (don't get me started on keto people)