I have been meditating on the ajna chakra form some time and now a days I feel some sort of pain or pressure in the spiritual eye. I want to know that why is this pain and what can i do? Should I give up this meditation?
I believe you are referring to the Spiritual Eye. Swami Kriyananda has spelled it Agya Chakra, but I assume we are referring to the same chakra.
Swami asked Paramhansa Yogananda one time why he couldn’t see the Spiritual Eye. Master told him that we has trying too hard. I assume that this is the case with you. You are too tense and putting too much energy in looking into the Spiritual Eye. Relaxation is the key to success in meditation.