provision U/s 35B CPC is mandatory and if the party fails to pay costs on the next date, the court is bound to disallow the prosecution of the suit

AIR 1981 Punjab And Haryana 269 (FB) 

where it was held that the provision U/s 35B CPC is mandatory and if the party fails to pay costs on the next date, the court is bound to disallow the prosecution of the suit or defence as the case may be.