Engagement break

I am from a joint family so arrange marriage was decided. so girl family was visited at Rajasthan I liked the girl and so did she in our first meet. so both our family mutually agreed for take it forward. Then engagement date was fixed and engagement took place last year August. But after few months of engagement. The girl and her family started to show real colours. The girl used to call me too much every now and then in day or in night and on the event i was not able to pick up the call. Her mother call me and gorme me every time to call during late night which was not possible. Her mom and she told me not to inform these to my parents and they talked with me directly. The girl even posted her photos on WhatsApp which one cannot show to their family. Lastly these incidents were brought to knowledge and both families mutually decided to call it off. We didnot ask for any dowry or any gifts but we gifted the girl jwels. It was decided that both family will return their belonging and the ring and we will proved some compensation to them. But it has been months that we have been asking them to come on mutually decided location but they are ignoring and stretching the date every time. Now my engagement has been fixed with another girl and the date is very near. The new girl family is known to entire matter. But till date they have not given us date for returning So can i engage with another girl befor returning their belongings.