What is lagda in visayan?

"Lagda" is not a common word in Visayan. It's possible that it's a dialect-specific word or a mispronunciation of another word.

Could you please provide more context?

For example, what is the situation where you heard or saw this word? What were the people talking about?

Knowing more about the context would help me understand what you're looking for and give you a more accurate answer.