Complex sentence: Membership is open to men and women, between the ages of 18 and 40, which must have adopted the lifestyle, language and culture of Rajasthan, Haryana, Malwa in Madhya Pradesh or nearby regions.
Split into simpler sentences: Membership is open to men and women, between the ages of 18 and 40. Of whom have adopted the lifestyle, language and culture of Rajasthan, Haryana, Malwa in Madhya Pradesh or nearby regions.