Parliamentary committee on Tuesday grilled top officials of the Urban Development ministry and civic agencies, seeking details about various construction projects of Delhi Commonwealth Games 2010. AIR correspondent quoting sources reports, the Parliamentary Standing Committee on Urban Development, headed by NDA Convenor Sharad Yadav, wanted to know the basis of selection of vendors, contractors and sourcing of construction material. Mr Yadav also reportedly asked whether pricing was done at competitive rates. Additional Secretary in the Urban Development Ministry R C Mishra, other senior officials from the ministry and from the Delhi Development Authority (DDA) and the Central Public Works Department (CPWD) appeared before the Committee. The DDA and CPWD working under the Urban Development Ministry carried out various infrastructure projects like building or renovating stadia, constructing houses for athletes and beautifying the national capital. The Committee members asked them to submit details about various aspects of the projects undertaken by them including the reasons for selecting a particular vendor and a particular product within three weeks.