Dr. M Sankaran, Director of the UR Rao Satellite Center, said that ISRO envisions establishing India's presence on Mars and Venus within next 5 years.
The possible challenges in this mission are spacecraft overheating upon entering Mars' atmosphere and the need to identify optimal launch windows
Internal discussions on mission concepts are in progress, indicating the agency's approach to tackling obstacles posed by interplanetary exploration.
As per Dr Sankaran, the thing that was holding back the Mars mission was the unsuccessful landing of Chandrayaan-2.
Scientists are researching thermal protection for Mars mission to manage the heat generated. But, the challenge is that this protection adds weight.