@jatinkkalra Ancients were really good at astrology. The knowledge of astrology was discovered by our ancestors only. I want to make one point clear that there is a difference between astronomy and astrology, and do not confuse them with each other.
Were they good at space?
I believe they were. The thing is I cannot read Sanskrit, and most of our ancient knowledge is contained in books written in Sanskrit. I cannot authoritatively say that they were good at it. But in some of the well researched books I have read that Aryabhatta discovered that the Earth was round 1000 years before the Greeks.