text: kal mujhe ek friend ne bataya ki usne apne ghar ke liye rainwater harvesting system lagwaya hai,tumhare ghar mein bhi kuch aisa hai?nahi yaar, lekin mujhe bhi bohot zaroori lagta hai, kyunki paani ki kami toh sabko pata hai, shayad mujhe bhi is par focus karna chahiye!