Few years back, the Lukha River was considered a dying river due to heavy pollution from run off of adjoining coal and limestone mines as well as effluents from adjoining cement factories. Due to this, the river turns a beautiful turquoise blue to sky blue in colour every winter. This beautiful display is however a dangerous sign that bring forth death to the aquatic life that live in the river.
However, in recent years the river has been regaining its health and life once again starts sprouting. To celebrate this, the village of Sonapyrdi in East Jaintia hills held the first "Lukha River Festival" in January 2019 to make people aware that the dead river lives again.