What is sustainable development?
Sunstainable development means development that take place without damaging the environment.
Development that meets the needs of the present without compromising the ability of future generations to meet their own needs.
In hindi, ye ek esi development hai jisme present needs ko fulfill krte hai but without compromising the needs of resources. e.g. Agr coal and petrol ka use hum is tarah se kre ki future generation ke liye ye resources khatam na ho jaaye.... That is known as Sustainable Development.
I hope it helps u!