The arrested persons were produced before the local Kalyan magistrate who remanded them in police custody until November 30, the police officer at the Kolsewadi police station at Kalyan told PTI tonight.
Police inspector V K Hirey of the Kolsewadi police station said that the 27-year-old victim was married to one Sanjay Manohar Waghmare (31) and the couple lived in Kalyan.
However, the woman's in-laws started harassing her and even forced her to abort when she was a couple of months pregnant.
The main accused in the case owns a shoe shop in the town and his relatives work in the railways and in top positions in the Maharashtra state secretariat.
Names of those arrested are Sanjay Manohar Sonawane, (31) Santosh Manohar Sonawane (27), Manohar Somnath Sonawane (56), Vimal Manohar Sonawane (46), Ashwini Manohar Sonawane (27) and Archana Amit Vanmare (29).
The Kolshewadi police which has taken up the case are probing the case further, the police said.