JAIPUR: On Tuesday, former Prime Minister Manmohan Singh had filed his nomination in the state capital of Jaipur. He is the Congress candidate for by-polls to a Rajya Sabha seat from Rajasthan. Manmohan Singh, 86, was received by Sachin Pilot, the Deputy Chief Minister and Rajasthan Congress president at the airport. The party, with the support of its 100 MLAs, 12 independents and six MLAs of the Bahujan Samaj Party of Mayawati has the numbers to get Dr Singh through to the Rajya Sabha. The by-election to the Rajya Sabha seat is being held due to its vacancy, owing to the demise of BJP chief Madan Lal Saini. Dr Singh was the prime minister for 10 years until his Congress-led UPA government was defeated by the BJP in 2004.