UPI/ASBA for secondary market - Seeking Feedback

All,

Seeking feedback. If you have been able to participate in the UPI/ASBA for secondary market,

  • Which broker-bank combination? And is there an easy way to participate?
  • How has been your experience?
  • Any limitations that you have encountered?

I am primarily looking to use the facility for equity mean reversion strategies where I cannot be sure that trade will execute but the funds would typically be blocked unnecessarily.