A massive tribal welfare programme has been launched by the government in Jharkhand. The given sentence is in active voice and it is in Present Perfect Tense. Rule : Subject + (has /have) + been + V3 + Other agents.
From Voice · English Language Competence Test
You may choose the book.
Let us help him.
They have built a perfect dam across the river.
Boil the water and cool it before you keep it in the fridge.
I bought a new shirt last week.
The men had constructed the bridge.
Please help me.
My mother mustn't be disturbed.