Hello @sanankhan

Welcome to Steemit, on behalf of the steemit team I am happy to welcome you here and Congratulations on Achievement 1 you have been verified, and now you can continue to Achivement 2.

All achievement task posts are posted only once. If your post hasn't been verified, you should be patient and make sure to mark the greeter to verify your Achievement task.
You are also expected to be active in other communities to publish posts and comment on other users' posts

Important to you:
I invite you to join at least #club5050 for your Steem power from post rewards. Please read steps by steps to join the club here

Regards