Christians and Sikhs have shown a striking increase in dowry leading to higher average dowries than Hindus and Muslims while average net dowry in Muslim marriages is only slightly lower than among Hindus and has remained stable, a study of about 40,000 marriages that took place in rural India between 1960 and 2008 has shown.

from Times of India https://timesofindia.indiatimes.com/business/india-business/christians-and-sikhs-show-increase-in-dowry-payments-in-rural-india-world-bank-blog/articleshow/84062515.cms