context: The Theravada school spread south from India in the 3rd century BCE, to Sri Lanka and Thailand and Burma and later also Indonesia. The Dharmagupta school spread (also in 3rd century BCE) north to Kashmir, Gandhara and Bactria (Afghanistan).
question: কোন শতাব্দীতে ধর্মগুপ্ত গোষ্ঠী কাশ্মীরে ছড়িয়ে পড়ে?
answers: 3rd century