The question asks which author-work pairing is incorrect. Gajanan Madhav Muktibodh was a prominent Hindi poet known for works like 'Bhooli Pehchan' and 'Satan ke Bugle', NOT 'Padmawat'. Padmavat (Padmawat) was actually written by Malik Muhammad Jayasi in the 16th century. The other pairings are correct: Phanishwar Nath Renu wrote 'Maila Anchal', Yashpal wrote 'Jhutha Sach', and Amrit Lal Nagar wrote 'Amrit aur Vish'.