British Indian history has been written by equating Alexander with Chandragupta Maurya. Basis for this equation is Megasthanese Indica, where in he mentions Sandrocottus. Britishers have taken Sandrocottus=Chandragupta and whole Indian history is based on this sheet anchor. But Indian historians are arguing since 100 years that, this equation is wrong. So, this is a century old proble, still not resolved amicably.
I have a detailed peer reviewed researched paper to address this problem. The summary of the paper, I am publishing here.
My Hypothesis, Sandrocottus = Samudragupta and Greeks clearly documents their transactions with Imperial Guptas. British colonial equation is wrong. The sheet anchor 326BCE is correct, but it should be treated as Gupta Shaka epoch for working out Indian chronology.
Proof:
1) Greek account says Sandrocouptos. SandroCouptos = Samdrogupto. (Only 1 letter error. Greek ‘nu’ used instead of Greek ‘mu’). Reading Chandragupta from Sandrocottus is primary error (be it Mauryan Chandragupta or Gupta Chandragupta). If it is not Chandragupta, Mauryans do not even come in the context.
2) Chandragupta1 (CG1) coins and inscriptions mentions him as “Chandra”. He is identified as Chandragupta1 only after Samudragupta (SG) publishes his Allahabad Prashasti, where Gupta genealogy was written. We have no king CG1 record, identifying himself as Chandragupta. That is why Delhi iron pillar Gupta Brahmi inscription has king named as Chandra only. Megasthanese naturally calls the king Xandramese = chandrama.
10)Why Guptas has be in BCE?
A) After 1AD (Jesus) Romans were ruling. Referrence will be to “Romaka” and not to Greeks. Indians knew Romaka Siddantha.
B) Junagadh inscription of Rudradamana recalls Mauryans and Ashoka. Ashoka had a Greek Administrator/king in the area (probably defeated Greeks and reappointed the ruler as a subdued king). Rudradamana being a kshatrapa was ruling under Persian King. This was in BCE. Rudradamana recalls defeating satavahana king (his son in law) satakarni. Andhra satavahanas were ruling and Guptas not yet started.
C) Naneghat inscription of satavahanas mentions about Vasudeva (probably early vaishnavism before Guptas). No satavahana inscription mentions about any Vishnu temple.
D) Heliodorus , ambassador of Greeks erects Garuda pillar. Since Greeks has to be before Romans, western historians do not date this pillar later than 100BCE.
E) Garuda is the royal emblem of Guptas. Guptas begins Vishnu temple constructions. Till Satavahanas no inscription with mention of any Vishnu temple. So, Heliodorus pillar must be coming up in front of Vishnu temple built by Guptas.
This implies, Guptas were ruling before Heliodorus pillar and after Naneghat inscription.
Both Rudradamana and Guptas come before Heliodorus pillar date and after Mauryans. Greek ambassadors were sent to Guptas.
Heliodorus pillar can not be before Naneghat inscription. British History puts Heliodorus in 100+BCE but satavahanas after 1AD. This is not possible from physical evidence on the ground.
British history is clearly wrong because, If, Chandragupta MAURYA was in 325 BCE (Alexander time) and Guptas were before 100BCE Heliodorus pillar, we can’t fill Mauryans to Guptas (including Satavahanas) in 225 years.
11) Alexander’s defeat has to be an epoch. Why?
Alexander had killed Darius3 and becomes King of king of Persia. He attacks India. His defat was very big one = defeat of king of king of Persia = emperrors defeat. If we have a new Saka for defeating a western kshatrapa (who is a governor under Persian empire), then there must be a Saka for defeating Alexander. Samudragupta mentions defeat of Shai shahanu shahi = Emperror of Persia and Saka murunda = Commander of Saka = kshatrapa or Kushana who accompanies Alexander as commander of Persians or Selucus who was a commander of Alexander at that time. So, 325BC Defeat of Alexander has to be Gupta Saka. CG1 was Indian Emperror and SamudraGupta Crowned Prince.
12) Why Gupta Saka Epoch =327BCE?
1) Reason for 326/7 BCE as GS = Alexander’s defeat after crossing Jhelam.
2) If we take Cyrus coronation at 550BCE, and Albirunis value of 241 (4 times 60 yrs samvatsara), then 550-241=309 BCE becomes GS. Alternately, Considering 325 (exact year of Alexander’s defeat) as GS, Cyrus Saka Epoch = 325+241=566 BCE.
3) We could expect a reset to Vikrama Saka (VS) after 300yrs (5x60),means 57 +300=357 BCE should be GS and 357+241=598BCE = Cyrus Saka Epoch. (Unlikely, so upper limit)
4) we could expect a reset to Shalivahana Saka (SS) after 420 yrs (7X60), means 420-78=342 BCE= GS (could be coronation of CG1). 342+241=583BCE=Cyrus Saka Epoch.
Inscriptions with 300GS are obtained. So GS was in use for atleast 300 years. VS can come after 300 years of GS.
13) Yudheyas linking Rudradamana and Guptas.
Another key connection is yaudheya. Yaudheya people worshiped Kartikeya and called him Mahasena. They were ruling in Haryana. When Kushana subdues them, Kushana coins were minted for the region with mahasena image. Kanishka mentions about them in Rabatak inscriptions. Yaudheya was defeated by CG2, as he mentions them in Allahabad prashasti. Due to the influence of Yudheya, CG2 names his son Kumāra Gupta. Kumara gupta coins carry mahasena and peacock, just like Yudheya coins. Guptas were Vishnu devotees. Unless there is some big influence, they won’t be minting Kartikeya coins. So, Yudheya links and shows, Guptas and Kushanas overlap during their rule. Yudheya is mentioned by Rudradamana also and Junagad carries Skandagupta inscription , ruler after Kumaragupta. So, Yudheya links Kushana, Rudradamana, Shatakarni, Guptas as overlapped during their existence.
If Yudheya ruled for more than 500 years, then they must be very famous and powerfull dynasty. Many kings from the dynasty must be known. To stretch Yudheya from Rudradamana in BCE (say 200 BCE) then , Kushanas, then shungas in 100 BCE and then up to Guptas in 200+CE will give more than 400 years rule to Yudheyas.
14) British chronology not matching important inscriptions?
As per British history (check Wikipedia)
1. Chandragupta Maurya (320-298 BCE)
2. Ashoka Maurya ( 273 - 232 BCE)
3. Rudradamana (130-150 CE)
4. Gautami putra Satakarni (78 CE - 102 CE)
5. Vasishta putra Satakarni (158-165 CE)
6. Maurya empire ( 320 - 185 BCE)
7. Archemenian Iranian empire ( 550 - 330 BCE)
8. Kushana Empire (30 CE - 375 CE) = 340 years
9. Sathavahana Empire ( 100+ BCE - 224 CE) = 300 years
10. Shunga Empire (185 BCE - 73 BCE)
11. Heliodorus pillar (113 BCE)
12. Kanishka (127 CE - 150 CE)
13. Gupta Empire (240 CE - 550CE) = 290 years.
14. CG1 (319-335CE)
15. SG (335-375 CE)
16. CG2 (380-415 CE)
17. Kumara Gupta (415-455 CE)
18. Skanda-Gupta (455-467CE)
19. Yudheya Dynasty (400+ BCE - 300+ CE)= 700 years.
1) British history gets caught in Vasishta putra sathakarni. Junagad inscription states, Rudradamana recovers lost land (to Gautamiputra) and defeats his son in law Vasishtaputra satakarni two times. But, vasistaputra satakarni is king in 158CE, while Rudradamana is dead by 150CE. How will Rudradamana defeats vasistaputra satakarni?
2) Rudradamana can be a vassal (maha kshatrapa) only to Kushanas, as archemenian empire ends due to Alexander in 330 BCE. To be precise Rudradamana was ruling under Kanishka. But we have no referrence to Kanishka from Rudradamana. kanishka has his own Saka, but Rudradamana and his dynasty inscriptions are in Cyrus Saka
3) Yudheya dynasty rules for 700 years, double than Maurya, sathavahana, Gupta etc. But we have no inscriptions or noteable kings?
4) Heliodorus pillar built before Sathavahanas started in Shunga period (113 BCE and Sathavahana start in 100 BCE). But not even 1 referrence to Vishnu temple or Garuda by Shunga or Sathavahana till Guptas in 220 CE??