Mahashivratri is a Hindu festival celebrated yearly mostly in the month of February or March to worship Lord Shiva. As per the Hinduism calendar, the festival is celebrated in the month of Magha, on the 13th /14th day of dark fortnight (Krishna Paksha) and coinciding with Chaturdasi thithi.
Worshipping Lord Shiva on this day of Maha Shivarathri is considered as highly meritorious and sin remover. It is believed Mahadev has taken the form of Linga on the midnight of Maha Shivarathri day. There will be special celebrations held in all Shaiva Kshetras all over the world and lakhs of people gather to offer their obeisance and salutations to Lord Shiva who is considered as the great destroyer of sins and the most benevolent God.