Can the landowner and builder terminate the agreement without imforming and compensation to me

In order to provide a proper legal opinion, I would need more details regarding the agreement you are referring to. Different laws in India govern various types of agreements, such as the Indian Contract Act, specific state laws, and property laws such as the Transfer of Property Act.

In general, the termination of an agreement by the landowner and the builder without informing or compensating you may not be permissible if there are specific terms and conditions outlined in the agreement that dictate the process for termination, including any requirements for notice or compensation.

It is important to carefully review the terms of the agreement you have entered into to understand your rights and obligations, as well as any recourse available to you in the event of a unilateral termination by the landowner and builder. Consulting with a legal professional who is well-versed in property and contract laws in India would be advisable to evaluate your specific situation and provide tailored advice.