@suresh I think you should talk to a doctor about this and read a lot on the subject. This not a simple decision, human body is very complicated and a perfect machine by itself.
Every organ in our body have multiple functional roles. ex: our teeth doesn't just help us to break food, but also have effects on the way we speak our voice etc, similarly even this organ has multiple roles. Testes is a vital body organ and produces testosterone hormone which is a male sex hormone. Sex hormones (male and female) are very important for overall healthy body. Sex hormones have major influences on our bone health, heart, liver, skin etc. So u cannot live a healthy life for long without sex hormones in your body.
If you cut off the supply of sex hormones in your body, you will have to go for HRT with either male or female hormonal supplementation. You cannot skip HRT, you need assistance from a hormone specialist.
I wud suggest you to reconsider such life choices if you are not dysphoric and you are choosing it just for recreational purposes . The long term consequences of such choices beyond recreation. May be u shud consider meeting a psychologist.
But in case you are dysphoric , you should visit a psychiatrist and get your psychiatric evaluation done. No qualified surgeon will touch you with a psychiatric evaluation report anyway.