Date of exile of Shri Ram: It is mentioned in Valmiki Ramayans' Ayodhya Kand (2/4/18) that Dashrathawanted to make Shri Ram the king because Sun, Mars and Rahu had surrounded his nakshatra and normally under such planetary configuration the king dies or becomes a victim of conspiracies.
Dashrathas' zodiac sign was Pisces and his Nakshatra was Rewati.
This planetary configuration was prevailing on the January 5, 5089 BC, and it was on this day that Shri Ram left Ayodhya for 14 years of exile.
Thus, he was 25 years old at that time (5114-5089).
There are several shlokas in Valmiki Ramayana which indicate that Shri Rama was 25-years-old when he left Ayodhya for exile. Valmiki Ramayan refers to the solar eclipse at the time of war with Khardushan in later half of 13thyear of Shri Rams' exile. It is also mentioned it was amavasya day and Mars was in the middle. When this data was entered, the software indicated that there was a solar eclipse on October 7, 5077 BC, (amavasyaday) which could be seen from Panchvati.
The planetary configuration was also the same - Mars was in the middle,
On one side were Venus and Mercury and on the other side were Sun and Saturn.
On the basis of planetary configurations described in various other chapters, the date on which Ravana was killed works out to be December 4, 5076 BC, and Shri Ram completed 14 years of exile on January 2, 5075 BC, and that day was also Navami of Shukla Paksha in Chaitra month. Thus Shri Ram had come back to Ayodhya at the age of 39 (5114-5075).
A colleague, Dr Ram Avtar, researched on places visited by Shri Ram during his exile, and sequentially moved to the places stated as visited byShri Ram in the Valmiki Ramayan, starting from Ayodhya he went right to Rameshwaram.
He found 195 places which still have the memorials connected to the events narrated in the Ramayana relating to the life of Shri Ram and SitaThese include Tamsa Tal (Mandah), Shringverpur (Singraur), BhardwajAshram (situated near Allahabad), Atri Ashram, Markandaya Ashram (Markundi), Chitrakoot, Pamakuti (on banks of Godavari), Panchvati, Sita Sarovar, Ram Kund in Trimbakeshwar near Nasik, Shabari Ashram,Kishkindha (village Annagorai), Dhanushkoti and Rameshwar temple.