Are Mutual Fund Agents who r providing inter state service (asset management company based in Maharastra and Agent based in UP) required for registration under GST

If a mutual fund agent of UP is providing services in UP but the Asset Management Company is based in Maharashtra, is he liable for GST registration if his turnover is less than 20lakhs.
If yes, is he liable to deposit the tax on commission earned by him with the govt & claim input tax credit..how can he set off the input tax credit??