Thanks for all the information that you have provided.
Most of my doubts are clear now .
Will post if i have any further queries.

You don't qualify for ILR. You and your child need to apply for a spouse/child settlement visa. This is a 5 year route (2 x 2.5 year visas) before you can apply for ILR. Your wife needs to prove she meets the financial requirement of £22,400pa with evidence of payslips and bank statements. You ...

My wife is a british citizen by descent . we have been married for 4 years we have a 2 year old child and wish to move to the uk .im a merchant seaman by profession .
How to i go about with moving to the uk and applying for ilr for myself and my child.