Here is an alternative chronology
http://nrsrini.blogspot.ca/2012/04/h...t-ancient.html
Name of the event Orthodox Date of the Event* Indian History Dates@
Age of the Vedas Eternal/4500 B.C.E. 1400—1000 B.C.E.
Upanishads Prior to Mahabharata War 2500—2000 (Ramkrishna Math) 1000—600 B.C.E.
Descension of Lord Krishna 3228 B.C.E. -----
Mahabharata War 3139/3067 B.C.E.(Narahari) -----
Brihadratha Dynasty of Magadha 3139—2130 B.C.E. -----
Ascension of Lord Krishna 3102 B.C.E. -----
Beginning of Kali Era 3102 B.C.E. -----
Pradyota Dynasty 2139—2001 B.C.E. -----
Sisunaga Dynasty 2001—1641B.C.E. 650 B.C.E.
Gautama Buddha 1894—1814 B.C.E. 563—483 B.C.E.
Mahvira Vardhamana 540—468 B.C.E.
Nanda Dynasty 1641—1541B.C.E. 467—362 B.C.E.
Maurya Dynasty 1541—1241 B.C.E.
Chandragupta Maurya 1541—1507 B.C.E.
Bindusara 1507—1479 B.C.E.
Ashokavardhana 1479—1443 B.C.E. Confused as Asoka the Great
Sunga Dynasty 1241 B.C.E. (beginning) 184—72 B.C.E.
Kanva Dynasty 784 B.C.E. (ending) 72—27 B.C.E.
Sankaracharya 509—477 B.C.E.# 788-820 A.D.
Saatavaahana 100 B.C.E.—225 C.E.
Gupta Dynasty 328—83 B.C.E. 320—490 C.E.
Alexander's Invasion 326 B.C.E. 326 B.C.E.
Chandragupta Vijayaditya 328—321 B.C.E. 321—305 C.E.
Samudra Gupta/Ashoka the Great 321--370 335—375 C.E.
Vikramaditya/Chandra Gupta II (Vikrama Era) 102 B.C.E.—15C.E. (53 C.E.) 375—413 C.E.
Shalivahana 25—85 C.E.
Shalivahana Saka (Era) 78 C.E.