Thanks for mail. I got PR and landed in Canada.
I did not mentioned her name in my family background declaration because in my passport and other governmentd documents, it was mentioned my actual parents names. So that time I was under impression that mentioning step-mother name could be issue as there were no direct evidence.
Actually, I lost my real mother when I was 6 months old. Then after, my father was lost when I was 18 years old. Now my step-monther is alone at back home country. I would like to bring her here in Canada. But, confuse about process. I know that might be I need to hire good lawyer to prepare her application because need to show strong relationship with her.