Can someone please help me to connect data lake to databricks

Do you mean connecting ADL2 to a workspace, reading data from an existing bucket/container?

i have a pandas dataframe in databricks and i want to migrate it to delta lake how can i do this

You can do spark.createDataframe(pandasDF).save(path) and it will create a delta lake directory in the path. https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.SparkSession.createDataFrame.html#pyspark.sql.[…]eateDataFrame