Year 51 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Marcellus and Sulpicius (or, less frequently, year 703 Ab urbe condita). The denomination 51 BC for this year has been used since the early medieval period, when the Anno Dominicalendar era became the prevalent method in Europe for naming years.
The caste census report, submitted to the Karnataka cabinet, has recommended enhancing the reservation for Backward Communities from the existing 32 per cent to 51 per cent ... of BC is 70 per cent.