Here's a breakdown:
* ni: This is the root of the verb, meaning "to go."
* dhatu: This refers to the verb root.
* roop: This means "form" or "conjugation."
* lang lakar: This refers to the present tense in Sanskrit.
The present tense form of "ni" is niyati, which is used in the third person singular (he/she/it).
Example:
* Sa niyati. (He goes.)
Let me know if you have any more questions about Sanskrit grammar.