Agra, June 14 -- Rashtriya Swayamsewak Sangh (RSS) chief Mohan Bhagwat interacted with 251 'karyakarta' (volunteers) who had gathered at Gau Gram in Parkham village of Mathura on Friday, sources said, adding he stressed on 'panch parivartan', a concept stressed by Sangh in its centenary year. The 'sarsanghchalak' reached Mathura on Thursday afternoon and is likely to leave the city on Saturday afternoon. The sessions on Friday were held behind closed doors. Also, no press statement was released later. Twenty-day 'Vikas Varg' is on at Gau Gram where a training of 251 karyakarta, who hail from western UP and Uttarakhand, has been going on since May 28 and will end on June 18. "Such training camps are organised every year in May and June. Those who attend undergo skill development and better their knowledge of some subjects. They are organised by the RSS nationwide," Sah Prant Prachar Pramukh for Braj prant Manmmohan Nirankari had said on Wednesday. Sources however revealed that the RSS chief held two 'Boddhik satra' (session of interaction) on Friday and stressed on Panch Parivartan, a concept stressed in this centenary year of RSS founded in 1925 on the day of Vijayadashmi (Dusshera)and will complete 100 years on Vijayadashmi (Dusshera) ahead. He had lunch with these volunteers. 'Panch Parivartan' (five-fold transformation in the society), including 'Kutumb Prabhodhan' (family values), environmental protection, social harmony, self-reform and duties of citizens, are discussed as fundamental pillars of change in society....