You here to get answer of question "How to add birthdays without contact info?" .
Its compulsory to have contact info under google account without its not possible.
I having one utilities which create vCard(VCF) file from excel.
STEP 1:
In excel sheet you have to just enter only contact name and birth-date and rest of information like mobile number , phone number and address etc... not required.
STEP 2:
After updation of xlsx file (excel) sheet attached to system. System will generate the vCard (vcf) file.
STEP 3:
Import the generated vCard (vcf) files to google contacts.
STEP 4:
Check your calendar you will find your relevant birthdays details.
You can contact me on email id: mr.manojbkalla@gmail.com
I provide HTML, CSS and Dot Net (.NET), Asp.Net, PHP Training in Malad and western suburbs of Mumbai and on-line training.
Contact Detail:
Manoj Kalla
Mobile : 98691 66077
Email ID : mr.manojbkalla@gmail.com
Note: Excel (spreadsheet) is registered trade mark of Microsoft.
