text: Kal raat maine ek documentary dekhi thi jisme bataya gaya tha ki paani kaise conserve kar sakte hain, tumhe dekhni hai kya?Waah, yeh toh interesting hai! Mujhe bhi pata hai ki choti-choti baatein karne se paani bacha sakte hain, jaise shower ke waqt paani band karna.