Video narration
Oru palli survey yil, ungal vaguppil sila maanavargalidam mattum kelvi kettaal, andha aayvu yaarai patri solla pogiradhu? Kelvi ketkappattavargal silar mattume; aanaal aayvin kelvi, ella maanavargalai patriyadhaga irukkalaam. Ungalaal elithaaga sandhikka mudindhavargale population endru ninaikka vendam. Population endraal, ungal kelvi thodarbudaiya muzhuk kuzhu. Adhanaal, andha palli survey yin population edhu? Ungal palliyil ulla ella maanavargalum. Avargalil therndhedukkappatta silar sample - andha muzhuk kuzhuvilirundhu edutha siriya pagudhi.