Man planted tree seeds, equivalent to his mother's weight, who passed away, to honor her memory.

Edit: 6.5 Lakh trees means 650 thousand trees :) Sayaji Shinde shared an emotional and unique plan to keep his mother’s memory alive for 500 years. Since humans cannot live that long, he decided to plant native tree seeds equivalent to his mother's total body weight across Maharashtra. He believes that by doing this, his mother will eternally exist around him—whether through the fragrance of the flowers, the fruits the trees bear, or the shade they provide. Source