President Pratibha Devisingh Patil will be arriving on a two-day visit to Mumbai today. The President will release a commemorative postage stamp on Yeshwantrao Chavan, the first Chief Minister of Maharashtra, at the Y B Chavan Centre at Nariman point this evening. She will attend the centenary celebrations of the Central Bank of India at the Jamshed Bhabha Auditorium, NCPA tomorrow at around 10 o’clock she would also participate in the Golden Jubilee Celebrations of Shiv Sena leader and MP, Manohar Joshi’s Kohinoor Group at the Shanmukhananda Hall. Security measures have been beefed up across the city to avoid any untoward incidents.