Linking bank account to demat and other related things

I am interested in consolidating my financial accounts by linking my demat account from Kumari Bank to my bank account in NMB Bank. However, I currently have a demat account already linked with NMB Bank. My intention is to streamline the process for managing funds, particularly for activities such as applying for IPOs, receiving bonuses, and utilizing the TMS facility.

Could you kindly provide guidance on how I can proceed with this consolidation, if it is feasible? My motivation for this action stems from the recent introduction of minimum balance requirements and associated costs for mobile banking services by Kumari Bank, whereas NMB Bank offers these services free of charge. Your assistance in this matter would be greatly appreciated. Thank you!