Proof hahaha   Its like saying wikipedia is proof of anything.

Understanding of what and why ??   

Lol. You'd think you'd be more understanding. 

sanskrit is only used for prayer as it is considered by brahmins as the language of the gods, in fact they would not teach to anyone who was not born  a brahmin . the fact that anyone of lower castes cannot hear sanskrit or read it means the brahmins had to speak in a 'lower' language for practicalities , for other castes they had to express themselves in 'manmade' languages for all their spiritual needs... Punjabi is so much richer and expressive because of this, a boli borne of the soil and the soul of Punjab

Theres always been an uneven ratio between girls and boys amongst British Indians due to sex selective abortion. http://news.bbc.co.uk/1/hi/uk/7123753.stm