Question

how did jyotiba phule try to help low caste girls

Answer 1

by getting the awareness into people and understanding the education of girls and educating them

Answer 2

Jyotiba Phule is remembered as the champion of women's education in India. He, along with his wife Savitribai Phule, opened the first school for girls in 1848. He dedicated his entire life for the upliftment of down-trodden, eradication of untouchability and strived for the equal rights for all. He extensively worked towards the causes of women and campaigned for widow re-marriage  and opposed child marriages. 
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