They are slowly moving in that direction. Remember when ISRO first began we had neither of those but look where we are today. Such endeavors take time.
Absolutely false, ISRO and it's predecessor the Indian National Committee for Space Research (INCOSPAR) was set up in 1962 and it did not arise out of nowhere, DAE was working on setting up a space agency in 1950s, there were a few observatories at university and state levels, already a few experiments had been performed, including early sounding rockets and underground experiments.
Moreover, ISRO since its inception has always been headed by visionary scientists, from Vikram Sarabhi to A Kiran Kumar. Sufficient funds may not have always been forthcoming, but the mandate was never tampered with. ISRO never wavered from their founding principles and continued along their path.
SUPARCO on the other hand was another get-rich-quick scheme that was envisaged in the hope of gaining rocket tech from Western allies for military applications. For most of its existence, it has been headed by retired
faujis and they have neither a scientific culture not spirit in that institution. There's no research of any worth happening there, no scientists of any name and no facilities to speak of.
Of course, none of these are insurmountable challenges, they can be overcome and the course set right, with the right set of people, right decision making and ample funds.
Napakis lack on every front. For them SUPARACO will be primarily about military applications against India and so they'll never allow the agency to come out of a narrow parochial view point.
Transfer of low-level tech from China can allow them to brag a little, but an institutional overhaul will need much much more.