BHIE-143 Previous Year Paper Solution | History of Environment | IGNOU Current Status Not Enrolled Price ₹99.00 Get Started orLogin Course Content 2024 BHIE-143 JUNE 2024 2023 BHIE-143 JUNE 2023 BHIE-143 DEC 2023 2022 BHIE-143 JUNE 2022 BHIE-143 DEC 2022