Vague and confusing facts posted by you.
Whether the defendant has refused service of notice of suit ? If so, it is proper service.
It is better to consult a local prudent lawyer for better appreciation of facts, proper guidance and proceeding.
However, if you are located in Delhi and feel so, may contact me (on appointment) with relevant records at: Chamber No 647, Lawyer's Chamber Block, Dwarka Courts Complex, Sector 10, Dwarka, New Delhi-110075 Cell # 9891152939 email: email@example.com or visit at: vakil-saab.com