Thanks for posting your queries.
SBI Small & Mid Cap fund is closed for investment i.e you cannot invest any fresh corpus in this fund.
ABSL Small & Mid Cap has done well in last few years, although being slightly more volatile, its fund manager has generated good alpha in last three years. You can continue if you are comfortable with it.
We would recommend Franklin India Smaller Companies Fund. This fund has generated consistent returns with least volatility for past many years.