Query regarding stamping

Hi ,

I had an question regarding my visa stamping. Visa was stamped on my passport in 2017 based on the approval I had got for client “A” till 24th March 2019. The project got over and I returned back to India . A new amendment was approved for Client “B” till 31 DEC 2018 last week . I am now planning to travel for Client B .Please note all the approvals are with the same employer. Wanted to know if I need to go to stamping again or I again fly directly since my passport is already stamped till 24 MAR 2019. Please let me know your thoughts on the above.