Notes

For this method you need to wear 1kg ankle weights in both legs for whole day and during any time of the day you should perform sprints. Run straight 30 yards, take rest for 30 seconds and run back from where you started. Repeat this for 3–4 times. Later take rest for 2 day and repeat this method again for a month or two. Gradually increase weight after 10–15 days.

What this will do is create some micro fracture in your leg joints and these micro fracture will get repaired with naturally releasing HGH (Human Growth Hormone) in your body, giving you few more centimetres in your legs.

For natural HGH release make sure that:

-You take enough deep sleep of at least 7–8 hours.
-Stay hydrated by drinking 3–4 litres of water everyday.
-Have a healthy high protein diet. Stay away from unhealthy foods.
-Do few stretching and own body weight exercises.
-Try to stay stress free.
Keep pressing your thumbs and toes as it will trigger the pituitary gland to release HGH.
The another method I've come up with is hanging upside down with weights.

As you know that astronauts grow 1–2 inches in space due to no gravity which causes their backbone to get decompressed.

This method will not reopen your growth plates but can help you to gain couple of inches.