Bihar Chief Minister Nitish Kumar on Saturday said he will have a word with his key political aide Upendra Kushwaha who has of late been disgruntled, triggering speculations of exit from the JD(U). Kumar, the de facto supremo of the JD(U), was replying to queries from journalists about Kushwaha, the party's parliamentary board chief, in Gaya district which he visited as part of a mass outreach programme "Samadhan Yatra".