Complex sentence: Pankaj Shukla started journalism with freelance writing in newspapers like Dainik Jagran, Swatantra Bharat and others, and became full time journalist with joining Amar Ujala, Kanpur.
Split into simpler sentences: Pankaj Shukla started journalism with freelance writing in newspapers like Dainik Jagran, Swatantra Bharat and others. He became full time journalist with joining Amar Ujala, Kanpur.