Route : Delhi – HapurByepass - Gajraula - Moradabad - Kashipur - Ramnagar – Corbett
A six-decade-old wildlife reserve, Jim Corbett was established in the year 1936 to protect many endangered species. The park was later named after the legendary hunter turned conservationist and author, Jim Corbett. It holds close to 600 species of avifauna. 
Quick Facts
Location : 245 kms/7 hours approx drive from Delhi
Best Time to visit : November to May
Places of Interest : Kalagarh Dam, Corbett Falls, Garjia Devi Temple, Corbett Museum, Crocodile Pool Getheryo Museum etc.
IMP. -The main park (Dhikala) is closed from mid June to mid Nov.

Route : Delhi-Gurgaon-Sohna-Alwar-Sariska
Sariska was once the royal reserve of the rulers of Alwar. Spread in 765.80 sq kms, Sariska was declared a wildlife sanctuary in 1955,it became a Tiger Reservein 1979 under Project Tiger.  Herds of sambar, chital, nilgai and sounders of wild boar can be seen here. There is also the picturesque Siliserh Lake. 
Quick Facts
Drive : 201 Kms. / 3 hours approx drive from Delhi
Location : Between Delhi & Jaipur (Rajasthan)
Best Time to visit : August - March

Route : Delhi - Pinan-Reni-Malarna Chour-Ranthambore
Ranthambore National Park is a vast wildlife reserve near the town of Sawai Madhopur in Rajasthan. It is a former royal hunting ground and home to tigers, leopards and marsh crocodiles. Its landmarks include the imposing 10th-century Ranthambore Fort, on a hill top, and the Ganesh Mandir temple. Also in the park, Padam Talao Lake is known for its abundance of water lilies
Quick Facts
Location : 355 kms / 5-6Hrs. approx. drive from Delhi
Altitude : 1656 feet
Best Time to visit : Oct.- Mar
Places of Interest : Ranthambore Fort, Padam Talao, Malik Talao, Raj Bagh Talao, Rajiv Gandhi Regional Museum, Kachida Valley, Dastkar.

Route : Delhi – Mathura - Bharatpur
Bharatpur is eastern gateway to Rajasthan. Known for its bird sanctuary-the Keoladeo Ghana National Park.  Every winter, the rare Siberian cranes migrate here. In the Bharatpur Palace, you can feast your eyes onancient exhibits dating back to the early 15th century.
Quick Facts
Location : 184 kms/ 5 hours approx drive from Delhi
Best Time to visit : October & March
Places of Interest : Keoladeo National Park, Deeg Palace, Laxman Temple &Bankebihari Temple.

Route : Delhi – Modinagar-Muzaffarnagar-Roorkee- Rajaji Nationall Park
Rajaji National Park is an Indian national park and tiger reserve that encompasses the Shivaliks, near the foothills of the Himalayas. It is spread over 820 km² and includes three districts of Uttarakhand: Haridwar, Dehradun and Pauri Garhwal.
Quick Facts
Location : 250 kms / 5-6 hours approx drive from Delhi
Altitude : 
Best Time to visit : Nov.- Jun
Activities : Tiger Park,Rafting,Chilla Barrage,Jhilmil Jheel,

Route : Delhi – Gurgaon- Sultanpur National Park
Sultanpur National Park is located at Sultanpur village on Gurugram-Jhajjar highway, 15 km from Gurugram, Haryana and 50 km from Delhi. This covers approximately 142.52 hectares
Quick Facts
Location : 45kms/1-2 hours approx drive from Delhi
Best Time to visit : Jan.- Mar
Activities : An excellent birds sanctuary where one can walk around the wetland to see the migratory birds & also spot a large number of the park's resident birds.