Several companies including Kalpataru Limited, Ellenbarrie Industrial Gases, HDB Financial Services, and Sambhv Steel Tubes are set to launch their IPOs this week. Analysts are suggesting investors consider Ellenbarrie and Sambhv for longer-term gains. HDB Financial is viewed as a long-term play, but its grey market premium has decreased. Experts advise caution on Kalpataru due to debt levels.