Bihar's ruling JDU on Thursday targeted former party President Sharad Yadav for not supporting Chief Minister Nitish Kumar's new alliance with the BJP and accused him of compromising with corruption.

"Sharad Yadav is compromising with corruption by supporting the RJD and Congress-led 'Mahagathbandhan' in Bihar," JDU chief spokesperson Sanjay Singh said here.

He was asked about Rajya Sabha member Sharad Yadav's opposition to Nitish Kumar's decision to form a government with the Bharatiya Janata Party in Bihar after dumping the Grand Alliance with the RJD and the Congress.

The spokesman raised questions about Sharad Yadav's decision to hold a seminar against communalism in New Delhi on August 17, two days ahead of the JDU National Executive meeting in Patna.Most senior leaders of the Congress and Left and regional parties are likely to attend the seminar.

This is first time JDU leaders have launched a direct attack against Sharad Yadav since Nitish Kumar embraced the BJP.

Sharad Yadav has said that Nitish Kumar's decision to ally with the BJP violated the mandate given by the people of Bihar in 2015.