The Lok Sabha will elect a Deputy Speaker on Wednesday, if there is more than one candidate for the post. The BJP-led NDA government is expected to field M Thambidurai from J Jayalalithaa's AIADMK, with an eye on the party's support in the other house, the Rajya Sabha. br br The process of filing nominations for the post will be held today. br br The BJP plans a quid pro quo for the post going to the AIADMK. While the NDA has a comfortable majority in the Lok Sabha, it needs all the support it can garner in the Rajya Sabha, where it is in a minority. The AIADMK has 10 members in the Rajya Sabha.