Panchangam or Panchang is a Hindu astrological calendar. It's making involves elaborate mathematical work and sound understanding of astronomical phenomena, such as sidereal movements of heavenly bodies. Panchānga is a Sanskrit word, literally meaning "having five limbs". They are
Din or the Solar day
Tithi or the Lunar day
Nakshatra or the Constellation
Mr. Kamal Kapoor, a famous astrologer, is providing free online Panchang on his website. You can see the Indian Calendar according to the vedic astrology with nakshatra, kalam etc of any day upto the year 2050.