You may pass board resolution without holding any physically meeting with the help of Resolution by circulation.
For details please check my article on Resolution by circulation available on the below mentioned link:
Can such resolution be passes through an email to all the director? How consent will be given in that case? What about signatures in the Email?
YEs, such resolution can be circulated to all the directors concerned through email and they are legally valid.
CA Amitabh Gupta