Jayant, noted. Which is why I too buy vinyls for Bollywood music from that era
Plasmoid, the first pressings of Jethro Tull would have been in 84-85. Those would have been pressed most probably in Japan. Those ones sound really good. I used to own them. I have no idea which ones you own. Thin Lizzy I don’t listen. So have no clue. For Jethro Tull, the best CD pressing is on DCC mastered by Steve Hoffman. I prefer that slightly over the Japanese first pressings. Japanese sounds a bit more lively whereas DCC sounds a bit more fuller. You can’t go wrong with either.