A for natural love and affection promises to give his son B Rs 100000/- A puts his promise to 'B' in to writing and register it. This is a:

S. 25. Agreement without consideration, void, unless it is in writing and registered or is a promise to compensate for something done or is a promise to pay a debt barred by limitation law. —An agreement made without consideration is void, unless— —An agreement made without consideration is void, unless— (1) it is expressed in writing and registered under the law for the time being in force for the registration of documents, and is made on account of natural love and affection between parties standing in a near relation to each other;   Illustration- (b) A, for natural love and affection, promises to give his son, B, Rs. 1,000. A puts his promise to B into writing and registers it. This is a contract