Hi arrselvar,
Here are the answers to your questions in bold text:
1.How many channels stored in PAGARIA HD PVR stb Upto 4000 C/Ku-band channels can be stored. Also there is a Favourite channels list.
2.can supports symbol rate 45000 QPSK&8psk MOD Yes. It supports symbol rates range from 2000KsPs to 45000KsPs in DVB-S & DVB-S2 QPSK/8PSK modulation.
3.supports Diseqc1.2 or 4 lnb Yes DiSEqC 1.0, DiSEq1.1, DiSEq1.2, DiSEq1.3 (USALS) is supported. Upto 16 LNBs can be supported.
4.Blindscan option or not. Blind Scan feature is there.