Yes, It is possible to get PG admission in IITs without a GATE score, but the process and requirements may vary depending on the specific program and IIT. Some IITs may admit students without a GATE score based on their performance in a qualifying exam or entrance test specific to the program, or based on their academic record. Some IITs may admit students without a GATE score based on their performance in a qualifying exam or based on their academic record and research experience.
If you are planning to study from IIT then I would recommend you take this MTech in AI and ML offering by Intellipaat. This program is specially designed in collaboration with IIT Jammu where you will be learning under IIT faculty in online. Also you will be getting graduation degree from IIT Jammu.