After meditation immediately doing suryanamaskar or other excersie is ok ?
Yes, it is perfectly fine to do suryanamaskar or other exercise AFTER meditation. My only suggestion is that you perform the exercises with a meditative and inward consciousness. It is important to maintain one’s inwardness and inner peace when performing any action that follows meditation. My teacher, Swami Kriyananda (a direct disciple of Paramhansa Yogananda) encouraged us to move gently and peacefully in our tasks following meditation. But that can include doing asanas, energization exercises or even more physical exercises so long as you make the effort to stay centered in the Self.
The point here is to learn to gradually extend the peace of meditation into the day of activities so that, someday, your actions will become meditation and your meditation will be the action of seeking the actionless state! As Bhagavan Krishna counsels, “One cannot achieve the actionless state without acting.”
Blessings to you!