What will you do if your effort and hardworking credit goes to your senior. you do all the efforts for goal achievement but it goes to his profile?

nothing the whole, a good team is to manage by a good chief, who has all the honor if it manages well.

This is what teamwork is all about - Your SENIOR is there to take the credit but also to share is with team  members and ackonowledge their contributions 

But he is also there to take the blame when things goes wrong 

TEAM: Together Everyone Achieve More

It is the philosophy of teamwork spiritual attitude. It is obviuosly clear example in football team, there is only one named person kick the ball into the Goal, but the name of the team win the game and achieved the Cup.

The team leader have the right to apply the project by his name, but it is well known by the top management that behind him there is a successful team work.

Advice: Be positive and do your best to win within your team. don't forget that you acquire high experience in the good job that you did, you add value to the project,