Delhi and its adjoining region received the first heavy showers of rains on June 30 heralding the arrival of the Monsoon season in the north of India. India Meteorological Department said that the southwest monsoon has advanced into entire Uttar Pradesh, Himachal Pradesh and Jammu & Kashmir, some parts of Rajasthan, entire Delhi, some parts of Punjab and Haryana today. Traffic jams were witnessed in ITO, Ring Road, nearby area of the Indira Gandhi International (IGI) Airport, Barapullah, Delhi-Noida border, Chilla Border, UP Gate, Delhi-Gurugram road and in Palam.