my submitted birth certificate in CIC was old analog system certificate collected from Dhaka city corporation in 2008 in 16 digit number. recently I contacted city corporation and applied for digital version with 17 digit registration number. though both information are same but formats are slightly change. should I contacted to sgvo about this change? what is their verification method? I am in tension that if vo searches my birth certificate then they might not get from online though practically it exists.