IMO replies 16 and 17 are maybe preparing legend for future spam. Maybe practicing language. They are unlikely to reply.
Atcha!?! Aapka hindi kaise hai? Punjabi, shahid? "Derek Brian" desi naam hain? (Mere patni Bollywood fan hai- she picks up the dance moves, I hear the lyrics. " Phir milenge, chalte, chalte..." ) OK enough forum bandwidth wasted on language practice.
No educated Hindustani needs to "practice" English, since that's the language of instruction for all subjects ('ceptin' maybe advanced French or Mandarin) beginning in high school (and often earlier) in India. But if his real name is really anything like Derek Brian I suspect he's a native speaker of English who happens to be living in Chandigarh.