However, environmentalists warn that if such importations begin, that will cause grave environmental harm.

The fertilizer pill made of human excrement could result in the spreading of various harmful germs in the country, they point out.

Environmentalists point out the red palm trees brought from India had damaged the local coconut plantations.

Weligama wilt, caused by these red palms, destroyed nearly 300,000 coconut trees, they charge.

Due to this, coconut is not imported from Kerala, India even today, add the environmentalists.