1960 नि माइथायफोराव केमिकल इंजीनियरिंगा मोनसे रोंमोन्दांथियारि आयदामोन, नाथाय बेयो मोनसे गिदिर सोलायनायनि खाथिथारावमोन।
Chemical engineering was an empirical subject in the 1960s, but it was on the verge of a big change.