Sir/Madam,nI am from Hyderabad I seek legal advice for my children my mother in law and my wife is n

Sir/Madam,nI am from Hyderabad I seek legal advice for my children my mother in law and my wife is not allowing me to see my children who are very small so has gone to her father's house when she was pregnant I used to frequently visit her when she was pregnant suddenly after some days she started not calling me and also not lifting my phone after 9 months she was delivered with male child but they did not inform me when the delivery was going to happen suddenly I went to my father in law house to find out when is delivery at that movement she was blessed with child. They did not show me the child. When we again went after one week they have vacated the house and did not give us new address where they have shifted already 10 months have passed and still now no response so I request me to give advice how to get visitation rights or child Custody towards me