Eka sloka collection - Ramayanam, Bhagavatham, Mahabharatam, Gita

1) Ramayanam in one sloka
Adau Rama Tapovanadi Gamanam Hatvamrigam Kanchanam
Videhi Haranam Jatayu Maranam Sugriva Sambhashanam
Vali Nigrahanaqm Samudratharanam Lankapuridahanam
Paschat Ravana Kumbhakarnaharanam Ethadhi ramayanam

Once Rama went to forest,He chased the deer,Sitha was kidnapped,Jatayu was killed, There were talks with Sugreeva,Vali was killed,The sea was crossed,Lanka was burnt,And later Ravana and Kumbha karna,Were also killed.This in short is the story of Ramayanam.

2) Sundarkandam in one sloka
yesya shree hanumaan anugraha balaath – theerNaam – buDhirleelayaa
lankaam praapya nishaamya raamadhayithaam Bhangktvaa vanam raakShasaan !
akShaadheen vinihatya veekShya dhashakam dhagDhvaa pureem thaam punaha
theerNaabDhihi kapiBhiryutho yamanamath tham raamachandramBhaje !!

I worship that Sri Rama, by whose grace, Sri Hanuman, who has Lakshmi kadaksha (grace), playfully crossed the ocean, reached Lanka after overcoming various obstacles, who after getting the status update from Sita (wife of Rama), destroyed the forest except Ashoka Vana the place where sita resided, destroyed the entire army (about 80 crores) headed by Akshaya Kumaran, son of Ravana, by merely displaying the power of his palm, who after meeting Ravana in his chamber and burning Lanka into ashes, returned to Rama and worshiped Sri Rama along with other monkeys."

3) Bhagavatham in one sloka

Adau Devaki Deva Garbhajananam Gopigrihe
Vardhanam Mayaputhana Jeevithapaharanam Govardhanodaranam
Kamsachedana Kauravadihananam Kunthi Sutha Palanam
Ethadbhagavatham Puranakaditham Srikrishna Leelamritham

Born to queen Devaki, Brought up by Gopis, Took out the life of Ogress Poothana, Lifted the Govardhana mountain, Beheaded his uncle Kamsa, Helped in killing the Kouravas, And looked after the children of Kunthi. This is in short the ancient story of Bhagawatha,Which describes the nectar like play of Lord Krishna

4) Mahabharatam in one sloka

Aadhau Pandava-Dhartarashtra-jananam Laakshaa-grihe Daahanam
Dyootam Sreeharanam Vané Viharanam Matsyaalayé Vartanam
Leelagograhanam Rane Viharanam Sandhi-kriya-jrumphanam
Paschat Bheeshma-drona, duryodhanaadi Nidhanam Etat Mahabharatam

(With) the birth of sons of Pandu and Drthrashtra and (failed attempt) of burning alive Pandavas) in a wax house, Wealth grabbed illegally, exile in forests (of Pandavas), retreat in the house of Matsya (Kingdom) cows stolen and rescued, in battle, Attempts for compromise (between the Pandavas and Karavas by Lord Krishna) failed, Bhishma, Drona Duryodhana and others killed, is MAHABHARATA

5) Gita in one sloka

(Though this sloka does not talk about the teaching of Gita, It is termed as Eka Sloki Gita. It is also included in the Vishnu Sahasranamam)

Yathra Yogeeswara Krushno, Yatha Partho Dhanurdhara,
Thathra srirvijayo bhoothir, Druva neethir mama."
(BG, Chapter 18, Verse,78)

'Where Krishna the God of Yogis is there,And where Arjuna , the expert archer is there,Wealth , victory, improvement and Justice,Will be there definitely for ever.'