Agreement is Not a 'Promise to Keep a Promise'

Maine pehle bhi suna hai ki contract mein agreement ka matlab hai mere vachan ki guarantee. Magar ye concept thoda ghatia hai. Agreement to mean contract ke sabhi terms accept karne se nahin, balki ek side ko dusre side se kuchh karna padta hai ya niyam thoda badla jaata hai. Example ke liye, Raju aur Ravi ki agreement hoti hai ki woh ek project par kaam karege, lekin woh project ke liye koi payment nahi dete. Yeh to agreement nahi hai, yeh ek contract ka ek hissa hai.