With a general rank of 72,200 and a community rank of 20,897, your son may not get top government colleges or high-demand branches like Computer Science. However, he has a good chance in mid-tier government or private colleges, especially under the community quota. Likely branches include Civil, Mechanical, Electrical, or Electronics. Colleges like CE Poonjar, CE Kottarakkara, or UCE Kariavattom may be possible. He should fill out many options during counselling to improve his chances. Private self-financing colleges may offer better branch choices. Final allotment will depend on seat availability and choices filled.