What's wrong? The title tells you how a Sikkimese person feels proud of his country when he says my desh is India.
Don't we hear words like Punjabi, Bihari, Bengali, Malayali, Maharashtrian, Kannadiga, Kashmiri, etc? This is basic identification of your region or state. The BEST part is saying I am an Indian.
The message coming from this 16 year old boy is more patriotic than what we webloggers are saying.
There is nothing wrong or mischievous about it. Please read it objectively.