Question

a para on scientific reason behind cleaning houses during Diwali

Answer 1

Diwali, is a 'Festival of Lights' that is celebrated with great vigour by Hindus and Jains the world over. In India, it is one of the biggest festivals celebrated every year. 
It is a family affair (like Christmas in the western countries). Lighting traditional diyas(from which the name diwali originates) and decorative lights all over the house are common traditions followed during this time. 

Before the festival begins, it is customary for home owners to thoroughly clean their homes, spruce up the paint and furniture as required, etc. 





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