Remember, if you are not sound in Technical aspects of your job, it is not good for you to come here. Very soon they will be able to judge / evaluate your performance and will terminate you. Then you will be left with no job.

Further, if you cause any loss due to technical neglience or technical inefficiency, then you may be imprisoned ranging from 1 year to 25 years depending on the loss that resulted from your low technical knowledge.

So if you are prepared to loose your job and even are willing to spend rest of your life in prison, then welcome.

I suggest you just go back to ONGC and withdraw your resignation and continue to work in India.