Queries regarding agriculture land

Hello! I have few queries again on behalf of a friend - -- My land is situated 12 km away from Municipal Corporation limits in a small village having population not more than 2000. But, this land is infertile. So, will this land be considered as Agriculture Land? -- Will this land be considered as a Capital asset? -- I had purchased this land about 15 months back! But, I want to sell it now! So, will I be able to take exemption on the gain arising from the selling of this land?