A Mumbai housing society member is seeking advice regarding a redevelopment agreement signed in 2014. The developer has delayed the project for six years. The member is concerned that the agreed-upon monthly rent of Rs 20,000 hasn't increased despite market rates rising, and that a significant bank guarantee was waived through a supplementary agreement. They are worried about protecting their interests if the developer defaults and are looking for guidance on how to address these issues, especially as the majority of members seem agreeable to the current terms.