Three rebel Rashtriya Janata Dal MLAs on Sunday resigned from the Bihar Assembly to extend their support to Nitish Kumar after his resignation as Bihar chief minister. Samrat Chaudhary, Ram Lakhan Ram Raman and Javed Iqbal submitted their resignation letters to Speaker Udai Narayan Choudhary. Chaudhary said they would join the JD(U) to strengthen hands of Kumar.