One word substitution..

 A bird that comes & goes with season-Migratory स्थलांतर करणारा

 A body through which light can pass Transparent पारदर्शक

A book or writing not bearing the name of the writer-Anonymous अनामिक

A brief summery of book- Epilogue उपसंहार

A careful preservation & protection of Conservation संरक्षण

A cessation of active use of arms signifying a short period of force-Armistice शस्त्रसंधी

A Chemical used for surface cleaning-Detergent निर्मलक

A child born after the death of his father, a book published after death - Posthumous मरणोत्तर

A Child who has lost one or both of its parents by death Orphan पोरके, अनाथ 

A cinema show held in the afternoon - Matinee दुपारचा प्रयोग

A Country etc. which is very distant Remote लांबचा, दूरचा

A crying evil-A deep rooted evil कुप्रथा (PSI 1984)

A decision which cannot be changed or modified Irrevocable अंतिम

A declaration of Government or a political party Manifesto जाहीरनामा

A diplomatic minister of the highest order sent by one country or another-Ambassador दूत

A disease attacking many people at the same time - Epidemic माग

A disease which can spread one person to another-Infectious संसर्गजन्य (1998)

A disease that is communicated by contact-Contagious स्पर्शजन्य/संपर्कजन्य A disease which attacks a whole country or the world-Pandemic व्यापक रोग

A fictitious pen name used by an author- Pseudonym टोपणनाव

A four legged animal Quadruped चतुष्माद

A game or battle in which neither party wins Draw अनिर्णीत (सामना)

An official pardon for offenders - Amnesty सर्वसाधारण माफी

A gesture of respect & devotion Homage आदरांजली

A good explanation for one's extraordinary behavior-Account for कारणमीमांसा करणे

A government by one man - Autocracy हुकूमशाही

A government which is not connected with religious or spiritual matter - Secular धर्मनिरपेक्ष

The science which studies the crust of the earth - Geology भूगर्भशाख

A hater of marriage Misogynist विवाहबंधनाचा तिरस्कार करणारा

A large cage or building where birds are kept - Aviary मोठा पिंजरा

A letter of persons position and trust worthiness-Credential विद्यासपात्र 

A letter, poem, prose etc. whose author is unknown - Anonymous निनावी

A loss or damage that cannot be compensated for Irreparable भरून न येणारे

A man of odd habits - Eccentric वाईट चालीबा

A man ruled by his wife- Hen pecked बायकोच्या ताब्यातील (MES-1999)

A man who has lots of investment in the private sector-Capitalist भांडवलदार

A man who has no money Impecunious कंगाल

A man who is very enthusiastic for his own religion and hates other religion beliefs - Fanatic धर्माध, चर्यविधा

A man who receives guests Host यजमान 

A man with narrow & prejudiced religious views-Fanatic धर्माष, पिसाट

A man working merely for money- Mercenary पोटाव

A mechanic or craftsman who has acquired skill in a particular craft - Artisan, कारागीर

A medicine that kills germs-Germicide जंतुनाशक

A word no longer in use Obsolete अप्रचलित (PSI-1998)

To accuse or charge a person - Indictment आरोपपत्र

To banish or turn out some one from society & fellowship-Ostracize बहिष्कृत

A writing that cannot be read-Illegible दुर्वाच्य (St/C1-1996)

Absence of Government- Anarchy अराजक

Allowance due to wife from her husband after separation - Alimony पोटगी

An area of land for the burial of dead people Cemetery कब्रस्तान. (2001)

An assembly of hearers - Audience श्रोते

An examination of a body after death - Postmortem शवपरीक्षा

An office or a post with no work but high pay- Sinecure लठ्ठ पगार परंतु काम कमी

To receive & give mutually Reciprocate आदानप्रदान करणे

An unmarried woman - Spinster अविवाहित स्त्री

Animal living in water Aquatic पाण्यात राहणारे प्राणी

Animal or plant depending on another plant or animal-Parasite बांडगूळ

Animals that eat both flesh and grass - Omnivorous मिश्राहारी

Animals which can live on land & in water-Amphibious उभयचर

Through which light cannot pass Opaque अपारदर्शक

Belonging or pertaining to an individual from birth-Congenital जन्मजात, उपजत

Belonging to a class between gentry & the labourers - Bourgeois पांढरपेशा

Concerning marriage - Matrimonial विवाहविषयक

"Collection of stars" - Constellation नक्षत्र 

Concluding part of literary work - Epilogue समारोप

Contrary (against) to the law - Illegal अवैध

Contrary to accepted opinions - Orthodox सनातनी 

Diamond year - 60 years हीरकमहोत्सव 

Dead body of a human being-Corpse प्रेत, शव 

Disbelief in the existence of God - Atheism नास्तिक वाद

Drugs which cause vomiting - Emetic उलट्या होणारे औषध

Efforts done with critical awareness - Conscious efforts सावध, जाणीवपूर्वक (PSA 1996)

Extremely refined in dress, conduct & speech-Sophisticated सुसंस्कृत

Extremely showy & colourful personality valuable & verbose speech - Flamboyant भपकेबाज

Those who believe readily Credulous भोळसर 

Fit to be elected/selected Eligible अनुरूप

Fruit or sweet dish usually taken after lunch - Dessert मिठाई

Full power in the hands of one man-Autocracy हुकूमशाही 

Giving big hand to someone and cheering - Applause टाळ्यांचा गजर

Goods which import-export is prohibited by law-Contraband आयात-निर्यातीवर बंदी असलेला

Government by a king or queen - Monarchy राजेशाही

Government by nobles - Aristocracy उच्चवर्गीयांचे शासन

Government by the officials - Bureaucracy नोकरशाही

Government by the people - Democracy लोकशाही

 Happening at the same time - Simultaneous एकसमयावच्छेदी

Happening every year - Annual वार्षिक

Having a similar nature - Homogeneous एकजिनसी

Having much wealth Opulent श्रीमंत

Having sole rights - Monopolist मक्तेदारी

One who walks in sleep - Somnambulist झोपेत चालणारा

One who walks on foot-Pedestrian पादचारी 

Only the spoken language Colloquial बोली भाषा

Original model-Prototype मूळ प्रतिमा

Papers written by hand or manually-Manuscript हस्तलिखित

Part of the theatre where the spectators sit Auditorium प्रेक्षागृह

People working together in the same office or department-Collegues सहकारी Perceptible by touch decimate clear and intelligible- Tangible स्पर्शज्ञेय

Power in the hands of parliament liament Plutocracy संसदाधिकार 

The story of one's own life written by oneself - Autobiography आत्मचरित्र 

Produced or born or made within the country without foreign collaboration - Indigenous स्थानिक

Property inherited from one's father or ancestor - Patrimony वडीलोपार्जीत

Put your energy for work-Act on कार्य करणे 

Science of pronunciation, or vocal sounds - Phonology उच्चारशास्त्र

Showing great strength Herculean बलवान 

Sole right to make and sell some invention - Patent व्यक्ती अधिकार

Someone who is imprisoned for the fulfillment of on agreement - Hostage ओलीस A person who uses his both hands well- Ambidextrous दोन्ही हात वापरणारा

Some previous example from the past Precedent पूर्वोदाहरण, शिरस्ता

Something that is sure to happen-Inevitable अटळ. (2001)

Speaking aloud to oneself-Soliloquy स्वगत

State of growth between boyhood & Youth-Adolescence पौगंडावस्था

Study of languages Philology भाषाशास्त्र

Study of mankind Anthropology मानव वंश शास्त्र

Study of the relation of living things to environment-Ecology पर्यावरण

Substances which kill insects & germs Insecticides कीटकनाशक 

Testing of a person's conduct, qualities abilities - Probation परिवीक्षा 

That we cannot do without - Indispensable अनिवार्य 

That which breaks easily Brittle ठिसुळ

That which cannot be believed Incredible अविश्वसनीय

That which cannot be conquered-Insurmountable दुर्लघ्य

That which cannot be corrected Incorrigible कोडगा, दुरुस्त न होण्यासारखा

That which cannot be described adequately- Indescribable अवर्णनीय

That which cannot be explained Inexplicable न उलगडणारा

To give something for loss or damage Compensate नुकसान भरपाई

That which cannot be heard - Inaudible अश्राब्य

That which cannot be rub off-Indelible खोडून टाकण्यास अशक्य

An unmarried old woman Spinster अविवाहित स्वी

That which catches fire easily Inflammable ज्वालाग्राही

That which causes death Fatal जिवघेणा

That which is all inclusive or complete unit- Exhaustive परिपूर्ण

That which is most likely to happen in immediate future Imminent तोंडाशी आलेला

That which is not recognized by the law- Illegitimate निषिद्ध

The act of provoking - Instigation चिथावणी

The action of looking back on past events - Retrospection सिंहावलोकन

Trade by exchanging- Barter वस्तूविनीमय