Artist/Actor Tagging Issue

Hello Team, I am a representative of actors/production studios from South India; and I am currently facing issue with Tagging Artists to Title Pages; 1. Sandeep Chatterjee(IX) - nm10871664; Add to HIT 3 (https://www.imdb.com/title/tt23804696/) 2. Dhanush (I) - nm1333687; add to Kalam: The Missile man of India (https://www.imdb.com/title/tt37020441/) Thank you.