The three-day conference, that started yesterday, is being held at a tent city in Dhordo, around 80 km from here.
Modi, Rajnath Singh, Ministers of State for Home Haribhai Chaudhary and Kiran Rijiju and over 200 police officials practised yoga between 6 am to 6.45 am, said an official present at the venue.
Later the Prime Minister and his cabinet colleagues went out of the tent city for a stroll and witnessed a magnificent view of sunrise.
Heads of NIA, CBI, IB, narcotics department and various police training academies are also taking part in the conference.
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The Prime Minister has also invited spouses of the police officers to the conference. Wives of some 60 officers today visited Bhuj town for sight-seeing and shopping.
They visited the famous Bhuj museum and Aaina Mahal and also went to the Bhuj market which is famous for Kutchi handicrafts and 'bandhani' dress materials.
Family members of 32 medal-winning police officers were taken for sight-seeing tour to Kala Dungar (black mountain), 15 km from the tent city.