CHENNAI: After a party worker’s question on ‘tax burden on middle-class people’ caused lot of embarrassment to Prime Minister Narendra Modi during a live interaction programme a couple of days ago, the Prime Minister’s Office has become doubly careful in selecting both the candidates and the questions for the interaction programme — ‘My booth is a strong booth’.Sources in the party said that they had asked the party workers , keen to interact and ask questions to Modi, to shoot a video and send it 48 hours ahead of Sunday’s programme. “We are double checking the process to avoid questions like the one raised by a functionary, Nirmal Kumar Jain, from Puducherry,” said a source in the party. The party has been receiving 500 to 1,000 questions from each constituency selected for the programme. They have been asked to fill in a google format form with information about themselves, importance of their place (constituency), question, address and contact number.The office of Narendra Modi Application ( NaMo App) has asked the party workers to put forth their question in their video and send it to them 48 hours ahead. “We select the best questions from those shortlisted and inform the concerned persons,” said the source.They said the teleconference, between the PM and the party workers, is being improved by trial-and-error.“The Puducherry incident is also a lesson for us,” said another party functionary, adding that the teleconference programme, which covered 15 constituencies in TN, would be shifted to north and eastern states of the country in the coming days.Modi, who was armed with numbers and statistics to speak volumes on his government’s schemes, shrugged off Nirmal’s question, saying that he was a trader and he would talk like one. His government was taking care of the common people, he added. Nirmal’s question centred around the government’s focus on tax collections, while not offering the expected IT sops for the middle class.