Welcome to HCM. after 10to 12 week after C-section you can start exercising. I generally advice my clients to take full fledged aerobics
,running, skipping, jogging,cycling, swimming after three months.
Start off at a light to moderate intensity, Perform aerobic exercise
for 30 minutes at least three days per week. You can gradually increase as you feel comfortable, resuming your pre-pregnancy
Skipping is also a good exercise and It is not harmful generally after C-section.