Hi@akhtar,
You can create an Auto Scaling group with the specified name and attributes. The below example creates an Auto Scaling group in a VPC using a launch configuration to specify the type of EC2 instance that Amazon EC2 Auto Scaling creates.
$ aws autoscaling create-auto-scaling-group --auto-scaling-group-name my-asg --launch-configuration-name my-launch-config --min-size 1 --max-size 3 --vpc-zone-identifier "subnet-5ea0c127,subnet-6194ea3b,subnet-c934b782"