I've had a question for quite a while now, but no one seems to know the answer.
It is my understanding that Diwali is the Indian New Year, but no one seems to know the number of the year. (It isn't 2015.)
Before the British invaded India and switched them to the British calendar system, Indians must have kept the date in years in some type of Indian system.
For example, in China they use the British calendar system, but they also have a Chinese one. Currently the Chinese year is 4713.
I am unable to find anything similar for the Indian Calendar. India had lots of astronomers and mathematicians in the past, so it doesn't make sense to me that they wouldn't have devised a time keeping system that adequately described years for the past and for the future.
So I would appreciate it if someone could tell me what year it is, with references.