Yamuna Developers Pvt. Ltd. (YDPL) contracted with Jaipur Tiles Ltd. (JTL) for supplying various kinds of tiles to its Green Valley Project with actual cost of Rs. 50,00,000. JTL fulfilled its own part but YDPL had paid only Rs. 20,00,000. After one year, JTL agreed to accept Rs. 20,00,000 in satisfaction of its claim of Rs. 30,00,000. Later on JTL filed a suit for the enforcement of contractual obligation. Decide the case on the basis of relevant legal provisions and case law.       (10 Marks)