We must do research experiments on sound and light energy to invent new instruments.
ధ్వని మరియు కాంతి మీద ఎన్నో పరిశోధనలు చేసి ఎన్నో నూతన పరికరములను కనిపెట్టాలి .
Word/s come alive.Make it so.
Manual scavenging of human excreta is "inhuman" profession(work) which still needs to be eradicated. Most percent young and adult Indian voters don't know that above point is in "Indian national congress election manifesto"
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